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The expression : (1)/(sqrt((3x + 1)))...

The expression :
`(1)/(sqrt((3x + 1))) ( { ( (1 + sqrt(3x + 1))/(2) )^(7) - ( (1 - sqrt(3x + 1))/(2))^(7) } )`
is a polynomial in x of degree is :

A

7

B

5

C

4

D

3

Text Solution

Verified by Experts

The correct Answer is:
D
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MODERN PUBLICATION-MOCK TEST PAPER -IV-SELECT THE CORRECT ANSWER
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  2. If a, b,c , d are the roots of the equation : x^(4) + 2x^(3) + 3x^(2...

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  3. The expression : (1)/(sqrt((3x + 1))) ( { ( (1 + sqrt(3x + 1))/(2) ...

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  4. The number of triangles in a complete graph with 10 non collinear vert...

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  5. If x^(r ) occurs in the expansions of (x+(1)/(x))^(n) then its coeff...

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  6. If in the expansion of (1+x)^(m)(1-x)^(n) the coefficients of x and x^...

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  7. If the straight line ax +by+c=0 always passes through (1,-2) then a,b,...

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  8. A straight line through P(1,2) is such that the intercept between the...

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  9. If the line through A=(4,-5) is inclined at an anlge 45^(@) with the p...

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  10. The mean and variance for the data 6,7,10,12,13,4,8,12 respectively ar...

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  11. If tan(x+y)=33, and x= tan^(-1)3, then: y=

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  12. Prove that: (sin x - sin 3x)/(sin^(2)x-cos^(2)x)=2sinx

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  13. The number of solution of the eqution |cot x|=cot x+(1)/(sin x)(0 le x...

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  14. The number of solution of the eqution |cot x|=cot x+(1)/(sin x)(0 le x...

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  15. cot^(-1)(21) +cot^(-1)(13)+co^(-1)(8)=

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  16. tan(cos^(-1)(1)/(5sqrt(2))-sin^(-1)(4)/sqrt(17)) is

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  17. If a,b,c are A.P then the value of the determinant |(x+2,x+3,x+2a),...

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  18. If A = [(alpha,2),(2,alpha)]and A^(3)=27 then alpha =

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  19. If A ={:[(1,0),(1,1)]:} and A^(8) =aA+bI , then (a,b) =

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  20. If A ={:[(a,0,0),(0,a,0),(0,0,a)]:} then det (Adj A) is

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