If the 8th term of an A.P. is 31 and the 15th term is 16 more than the 11th term, find the A.P.
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In the expansion of `(1+x)^n ,` 7th and 8th terms are equal. Find the value of `(7//x+6)^2` .
Correct Answer - `n^(2)` Since the `7^(th)` and `8^(th)` terms are equal , we have `.^(n)C_(6)x^(6) =.^(n)C_(7)x^(7)` or `x=(.^(n)C_(6))/(.^(n)C_(7))=(7)/(n-6)` or `(7/x+6)=n^(2)`
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In the expansion of `(3-sqrt(17/4+3sqrt2))^15` the 11th term is a
Correct Answer - A We have, `17/4 + 3sqrt(2) = 1/4 (9+8+12sqrt(2)) = 1/4 (3+2sqrt(2))^(2)` `3-sqrt(17/4+3sqrt(2)) = 3-1/2(3+2sqrt(2)) = 3/2- sqrt(2)` Hence, the 10 th term of `(3- sqrt(17/4 + 3sqrt(2)))^(20)...
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Consumer Protection Act is effective in India with effect from - (A) 15th April, 1986 (B) 15th April, 1987
Correct option is: (A) 15th April, 1986
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The 15th term of the A.P. : 1/2, 1, 3/2, 2, .... is –
Correct answer is (B) 15/2
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Objectives of 10th Plan and Objectives of 11th Plan.
Objectives of 10th Plan Objectives of 11th Plan (i) The main objective of the 10th Plan was ‘transforming India into the fastestgrowing economy of the world.’ (i) The main objective of the 11th...
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In an examination, Salim secured `52%` marks and got 114 marks more than the pass marks and A zam secured `39%` marks and got 36 marks more than the p
Correct Answer - `198,33%`
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10. Lymph differs from blood in possessing (1) More proteins and less waste products (2) Less proteins and more waste products (3) More proteins and more waste products (4) Less proteins and less waste products
(2) Less proteins and more waste products
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Which term of the arithmetic progression 8,14,20,26, ... will be 72 more than its 41st term?
Correct Answer - 53rd
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Which one of the country occupied Goa seaport in 15th Century?
(D) Portugal
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According to this every 8th element has similar properties starting from a, given element
B) Newlands’ law
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