āĻ¸ā§āĻāĻ āĻ āĻāĻ°āĻŖā§ – āĻ¸āĻāĻā§āĻāĻž – āĻ¸ā§āĻ¤ā§āĻ° – āĻāĻĻāĻžāĻšāĻ°āĻŖ – MCQ
Indices and Surds - Math Practice Set in Bengali
āĻ¸ā§āĻāĻ āĻ āĻāĻ°āĻŖā§ – āĻ¸āĻāĻā§āĻāĻž – āĻ¸ā§āĻ¤ā§āĻ° – āĻāĻĻāĻžāĻšāĻ°āĻŖ – MCQ
āĻĒā§āĻ°āĻŋā§ āĻĒāĻžāĻ āĻā§āĻ°āĻž, āĻāĻāĻā§ āĻāĻŽāĻ°āĻž āĻāĻ˛ā§āĻāĻ¨āĻž āĻāĻ°āĻŦā§ āĻ¸ā§āĻāĻ āĻ āĻāĻ°āĻŖā§ – āĻ¸āĻāĻā§āĻāĻž – āĻ¸ā§āĻ¤ā§āĻ° – āĻāĻĻāĻžāĻšāĻ°āĻŖ – MCQ āĻ¨āĻŋā§ā§āĨ¤ Indices and Surds – Math Practice Set in BengaliÂ
āĻĻā§āĻā§ āĻ¨āĻžāĻ :Â āĻŦā§āĻāĻāĻŖāĻŋāĻ¤ā§āĻ° āĻāĻŋāĻā§ āĻā§āĻ°ā§āĻ¤ā§āĻŦāĻĒā§āĻ°ā§āĻŖ āĻ¸ā§āĻ¤ā§āĻ° āĨ¤ Algebra Formulas
āĻ¸ā§āĻāĻ
āĻĒā§āĻ°āĻĨāĻŽā§āĻ āĻā§āĻ¨ā§ āĻ¨ā§āĻŦā§ āĻ¸ā§āĻāĻ āĻŦāĻ˛āĻ¤ā§ āĻāĻŽāĻ°āĻž āĻāĻŋ āĻŦā§āĻāĻŋ āĨ¤
āĻ¸ā§āĻāĻ āĻāĻžāĻā§ āĻŦāĻ˛ā§ ?
āĻ¯āĻĻāĻŋ a āĻāĻāĻāĻŋ āĻ āĻāĻŖā§āĻĄ āĻ§āĻ¨āĻžāĻ¤ā§āĻŽāĻ āĻ¸āĻāĻā§āĻ¯āĻž āĻšā§ āĻāĻŦāĻ a -āĻā§ āĻ¯āĻĻāĻŋ n āĻ¸āĻāĻā§āĻ¯āĻ āĻŦāĻžāĻ° āĻā§āĻ¨ āĻāĻ°āĻž āĻšā§, āĻ¤āĻŦā§ āĻā§āĻŖāĻĢāĻ˛āĻāĻŋāĻā§ āĻ˛ā§āĻāĻž āĻšā§ –
$latex a\times a\times a\times ……… \left( n\:times \right)\:=\:a^n &s=2$
āĻāĻāĻžāĻ¨ā§ a-āĻā§ āĻ¨āĻŋāĻ§āĻžāĻ¨ (base ) āĻāĻŦāĻ n-āĻā§ a-āĻāĻ° āĻāĻžāĻā§āĻ° āĻ¸ā§āĻāĻ āĻŦāĻž āĻ¸āĻāĻā§āĻˇā§āĻĒā§ āĻ¸ā§āĻāĻ (index ) āĻŦāĻ˛āĻž āĻšā§āĨ¤
āĻĻā§āĻā§ āĻ¨āĻžāĻ :Â āĻĒāĻ°āĻŋāĻŽāĻŋāĻ¤āĻŋāĻ° āĻā§āĻ°ā§āĻ¤ā§āĻŦāĻĒā§āĻ°ā§āĻŖ āĻ¸ā§āĻ¤ā§āĻ° āĨ¤ Porimiti Math Formula in Bengali
āĻ¸ā§āĻāĻā§āĻ° āĻŦāĻŋāĻāĻŋāĻ¨ā§āĻ¨ āĻ¸ā§āĻ¤ā§āĻ°
a āĻ b āĻāĻ° āĻŽāĻžāĻ¨ āĻļā§āĻ¨ā§āĻ¯ āĻ¨āĻž āĻšāĻ˛ā§ āĻāĻŦāĻ m āĻ n āĻ§āĻ¨āĻžāĻ¤ā§āĻŽāĻ āĻ āĻāĻŖā§āĻĄ āĻ¸āĻāĻā§āĻ¯āĻž āĻšāĻ˛ā§, āĻ¸ā§āĻāĻ āĻ¸āĻāĻā§āĻ°āĻžāĻ¨ā§āĻ¤ āĻ¸ā§āĻ¤ā§āĻ°āĻā§āĻ˛āĻŋ āĻšāĻ˛ –
āĻ¸ā§āĻ¤ā§āĻ° 1 :
$latex a^m \times a^n\:=\: a^m.a^n\:=\:a^{m+n}&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ : $latex 2^3 \times 2^2\:=\: 2^3.2^2\:=\:2^{3+2}\:=\:2^5\:=\:32&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 2 :
$latex a^m \div a^n\:=\frac{a^m}{a^n}\:=\:a^{m-n}&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ : $latex 3^3 \div 3^2\:=\frac{3^3}{3^2}\:=\:3^{3-2}\:=\:3&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 3 :
$latex \left(a^m\right)^n\:=\:a^{mn}&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ : $latex \left(3^2\right)^3\:=\:3^{2\times 3}\:=\:3^6\:=\:729&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 4 :
$latex a^m b^m \:=\:\left(ab\right)^m&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ : $latex 2^3 3^3 \:=\:\left(2\times 3\right)^3\:=\:6^3\:=\:216&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 5 :
$latex \frac{a^m}{b^m}\:=\:\left(\frac{a}{b}\right)^m&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ : $latex \frac{4^6}{2^6}\:=\:\left(\frac{4}{2}\right)^6\:=\:2^6\:=\:64&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 6 :
$latex a^{-n}\:=\:\frac{1}{a^n}&s=2$
āĻāĻŦāĻ
$latex \frac{1}{a^{-n}}\:=\:a^{n}&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ :
$latex 4^{-2}\:=\:\frac{1}{4^2}\:=\:\frac{1}{16}&s=2$
āĻāĻŦāĻ
$latex \frac{1}{4^{-2}}\:=\:4^{2}\:=\:16&s=2$
āĻĻā§āĻā§ āĻ¨āĻžāĻ : āĻ āĻāĻā§āĻ° āĻ¸ā§āĻ¤ā§āĻ°- āĻĒāĻžāĻ°ā§āĻ ā§§ āĨ¤ Mathematics Formula Part -1 | PDF
āĻ¸ā§āĻ¤ā§āĻ° 7 :
$latex a^{\frac{1}{n}}\:=\:\sqrt[n]{a}&s=2$
āĻāĻŦāĻ
$latex a^{\frac{m}{n}}\:=\:\sqrt[n]{a^m}&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ :Â
$latex 8^{\frac{1}{3}}\:=\:\sqrt[3]{8}\:=\:2&s=2$
āĻāĻŦāĻ
$latex 8^{\frac{2}{3}}\:=\:\sqrt[3]{8^2}\:=\:\sqrt[3]{64}\:=\:4&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 8 :
$latex a^1\:=\:a&s=2$
āĻāĻŦāĻ
$latex a^0\:=\:1&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ :Â
$latex 3^1\:=\:3&s=2$
āĻāĻŦāĻ
$latex 4^0\:=\:1&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 9 :
$latex a^m\:=\:b^m&s=2$ āĻšāĻ˛ā§ $latex a\:=\:b&s=2$ āĻšāĻŦā§ āĻ¯ā§āĻāĻžāĻ¨ā§ $latex \left(m \ne 0\right)&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ :Â
$latex p^2\:=\:q^2&s=2$ āĻšāĻ˛ā§ $latex p\:=\:q&s=2$
āĻ¸ā§āĻ¤ā§āĻ° 10 :
$latex a^m\:=\:a^n&s=2$ āĻšāĻ˛ā§ $latex m\:=\:n&s=2$ āĻšāĻŦā§ āĻ¯ā§āĻāĻžāĻ¨ā§ $latex \left(a \ne 0,1,-1\right)&s=2$
āĻāĻĻāĻžāĻšāĻ°āĻŖ :Â
$latex 3^x\:=\:3^y&s=2$ āĻšāĻ˛ā§ $latex x\:=\:y&s=2$
āĻāĻ°āĻŖā§
āĻāĻ°āĻŖā§ āĻāĻžāĻā§ āĻŦāĻ˛ā§ ?
āĻāĻāĻāĻŋ āĻ§āĻ¨āĻžāĻ¤ā§āĻŽāĻ āĻ¸āĻāĻā§āĻ¯āĻžāĻ° āĻā§āĻ¨ā§ āĻŽā§āĻ˛ (root ) āĻ¸āĻ āĻŋāĻāĻāĻžāĻŦā§ āĻ¨āĻŋāĻ°ā§āĻŖā§ āĻāĻ°āĻž āĻ¸āĻŽā§āĻāĻŦ āĻ¨āĻž āĻšāĻ˛ā§ (āĻ āĻ°ā§āĻĨāĻžā§, āĻŽā§āĻ˛āĻĻ āĻ¸āĻāĻā§āĻ¯āĻžāĻ° āĻāĻāĻžāĻ°ā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻ¨āĻž āĻāĻ°āĻž āĻā§āĻ˛ā§,) āĻ¸ā§āĻ āĻŽā§āĻ˛āĻā§ āĻāĻ°āĻŖā§ (surd ) āĻŦāĻ˛āĻž āĻšā§ āĨ¤
āĻāĻĻāĻžāĻšāĻ°āĻŖ :
$latex \sqrt[2]{2},\sqrt[3]{5}&s=2$
āĻ¸ā§āĻāĻ āĻ āĻāĻ°āĻŖā§ āĻ¸āĻŽā§āĻĒāĻ°ā§āĻāĻŋāĻ¤ āĻĒā§āĻ°āĻļā§āĻ¨ āĻ āĻāĻ¤ā§āĻ¤āĻ°
Question : $latex 5.05 \times 10^4 + 8 \times 10^3 + 4 \times 10 &s=1$ āĻāĻ° āĻŽāĻžāĻ¨ āĻ¨āĻŋāĻ°ā§āĻŖā§ āĻāĻ°ā§āĻ¨ āĨ¤Â
[A] 505840
[B] 58450
[C] 58544
[D] 58540
Answer
$latex 5.05 \times 10^4 + 8 \times 10^3 + 4 \times 10 &s=1$
= 50500 + 8000 + 40 = 58540
[/spoiler]Question : $latex 9.099 \times 10^4 + 2 \times 10^3 + 1 \times 10^1 + 5 \times 10^0 &s=1$ = ?
[A] 92995
[B] 93035
[C] 93095
[D] 93005
Answer
$latex 9.099 \times 10^4 + 2 \times 10^3 + 1 \times 10^1 + 5 \times 10^0 &s=1$
= 90990 + 2000+ 10 + 5 = 93005
[/spoiler]Question : $latex 5^5 \div \left(5^3 \times 2^2 \right) &s=1$ = ?
[A] 125
[B] 31.25
[C] 6.25
[D] 12.5
Answer
$latex 5^5 \div \left(5^3 \times 2^2 \right) &s=1$
$latex =\frac{5^5}{5^3 \times 2^2}&s=2$
$latex =\frac{5^{5-3}}{2^2}&s=2$
$latex =\frac{5^2}{2^2}&s=2$
$latex =\left(2.5\right)^2&s=1$
$latex =6.25&s=1$
[/spoiler]Question : $latex 2^4 \times 3^4 \times 8^4 \div \left(2 \times 3 \times 8\right)^3&s=1$ = ?
[A] 576
[B] 48
[C] 96
[D] 192
Answer
$latex 2^4 \times 3^4 \times 8^4 \div \left(2 \times 3 \times 8\right)^3&s=1$
$latex =\frac {2^4 \times 3^4 \times 8^4}{2^3 \times 3^3 \times 8^3}&s=2$
$latex =2^{4-3} \times 3^{4-3} \times 8^{4-3}&s=1$
$latex =2 \times 3\times 8&s=1$
$latex =48&s=1$
[/spoiler]Question : $latex 6.28 \times 10^4 + 3 \times 10^2 + 5 \times 10^1 &s=1$ = ?
[A] 63150
[B] 62850
[C] 6315
[D] 62350
Answer
$latex 6.28 \times 10^4 + 3 \times 10^2 + 5 \times 10^1 &s=1$
= 62800 + 300 + 50 = 63150
[/spoiler]Question : $latex 5^3 \times \left(2 \times 3 \right) ^2&s=1$ – āĻāĻ° āĻŽāĻžāĻ¨ āĻ¨āĻŋāĻ°ā§āĻŖā§ āĻāĻ°ā§āĻ¨ ?
[A] 4500
[B] 2250
[C] 750
[D] 3550
Answer
$latex 5^3 \times \left(2 \times 3 \right) ^2&s=1$
$latex = 125Â \times 6^2&s=1$
$latex = 125Â \times 36&s=1$
$latex = 4500&s=1$
[/spoiler]Question : $latex 2^2 \times 3^3 &s=1$ āĻāĻ° āĻŽāĻžāĻ¨ –Â
[A] 36
[B] 72
[C] 144
[D] 108
Answer
$latex 2^2 \times 3^3 &s=1$
$latex =4 \times 27 &s=1$
$latex =108&s=1$
[/spoiler]Question : $latex 5.1 \times 10^3 + 2 \times 10^2 + 3 \times 10^1 + 1 \times 10^ 0&s=1$ āĻāĻ° āĻŽāĻžāĻ¨ āĻāĻ¤ ?
[A] 5321
[B] 5132
[C] 5331
[D] 5231
Answer
$latex 5.1 \times 10^3 + 2 \times 10^2 + 3 \times 10^1 + 1 \times 10^ 0&s=1$
= 5100 + 200 + 30 + 1
= 5331
[/spoiler]Question : $latex 4^6 \times \left(2^3\right)^2 \div \left(8^2 \times 3^2 \times 4^2 \right)&s=1$ āĻāĻ° āĻŽāĻžāĻ¨ āĻāĻ¤ ?
[A] $latex 24&s=1$
[B] $latex \frac{256}{9}&s=2$
[C] $latex 28&s=1$
[D] $latex \frac{158}{3}&s=2$
Answer
$latex 4^6 \times \left(2^3\right)^2 \div \left(8^2 \times 3^2 \times 4^2 \right)&s=1$
$latex =2^{12} \times 2^6 \div \left(2^6 \times 3^2 \times 2^4 \right)&s=1$
$latex =\frac{2^{18}}{2^{10} \times 3^2}&s=2$
$latex =\frac{2^{18 – 10}}{3^2}&s=2$
$latex =\frac{256}{9}&s=2$
[/spoiler]Question : $latex 7^{10} \times 6^4 \div \left(7^{-10} \times 6^{-4}\right)&s=1$ āĻāĻ° āĻŽāĻžāĻ¨ āĻ¨āĻŋāĻ°ā§āĻŖā§ āĻāĻ° ?
[A] $latex 1&s=1$
[B] $latex 7^{20} \times 6^8&s=2$
[C] $latex 42^{28}&s=1$
[D] $latex 42^{14}&s=2$
Answer
$latex 7^{10} \times 6^4 \div \left(7^{-10} \times 6^{-4}\right)&s=1$
$latex =\frac{7^{10} \times 6^4} {7^{-10} \times 6^{-4}}&s=2$
$latex =7^{10+10} \times 6^{4+4}&s=1$
$latex =7^{20} \times 6^{8}&s=1$
[/spoiler]Question : 404040 āĻ¸āĻāĻā§āĻ¯āĻžāĻāĻŋāĻā§ āĻĻāĻļā§āĻ° āĻāĻžāĻ¤ āĻšāĻŋāĻ¸ā§āĻŦā§ āĻĒā§āĻ°āĻāĻžāĻļ āĻāĻ°āĻ˛ā§ āĻŦāĻŋāĻāĻ˛ā§āĻĒāĻā§āĻ˛āĻŋāĻ° āĻŽāĻ§ā§āĻ¯ā§ āĻā§āĻ¨āĻāĻŋ āĻĒāĻžāĻā§āĻž āĻ¯āĻžāĻŦā§ ?
[A] $latex 4 \times 10^5 + 4 \times 10^3 + 4 \times 10^1&s=1$
[B] $latex 4 \times 10^4 + 4 \times 10^3 + 4 \times 10^2&s=1$
[C] $latex 4 \times 10^5 + 4 \times 10^2 + 4 \times 10^1&s=1$
[D] $latex 4 \times 10^5 + 4 \times 10^3 + 4 \times 10^0&s=1$
Answer
āĻāĻāĻŽāĻžāĻ¤ā§āĻ° [A] āĻ¤ā§āĻ āĻšāĻžāĻāĻžāĻ° āĻ¸ā§āĻĨāĻžāĻ¨ā§ āĻ āĻĻāĻļāĻ āĻ¸ā§āĻĨāĻžāĻ¨ā§ 4 āĻ°ā§ā§āĻā§
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