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sin(2sin^(-1) 0.8)=...

`sin(2sin^(-1) 0.8)=`

A

`"sin" 1.2^@`

B

`"sin" 1.6^@`

C

0.48

D

0.96

Text Solution

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The correct Answer is:
D
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DISHA PUBLICATION-INVERSE TRIGONOMETIC FUNCTIONS-EXERCISE - 1: (CONCEPT BUILDER)
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  3. sin(2sin^(-1) 0.8)=

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  5. If 2 sin^(-1)x - cos^(-1)x = pi/2, then x is equal to

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  6. If x+y+z=xyz, then tan^(-1)x+tan^(-1)y+tan^(-1)z=

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  7. If (tan^(-1) x)^2 + (cot^(-1) x)^2 = (5pi^2)/8 then x equals

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  9. If 4 "sin"^(-1)x+"cos"^(-1)x=pi, then x is equal to

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  10. If "sin"^(-1)((6x)/(1+9x^2))=2 "tan"^(-1)(ax), then a=

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  11. tan(tan^-1x+tan^-1y+tan^-1z)-cot(cot^-1x+cot^-1y+cot^-1z) is equal to

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  13. The solution of sin^(-1)x-sin^(-1)2x=pm(pi)/(3) is

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  14. Prove that: sin^(-1)(12)/(13)+cos^(-1)4/5+tan^(-1)(63)/(16)=pi

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  15. The number of solution of the equation tan^(-1) (1 + x) + tan^(-1) (1 ...

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  16. If a le sin^(-1)x +cos^(-1)x+tan^(-1)x le b, then:

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  17. If a(1),a(2),a(3),….a(n) is a.p with common difference d then tan{ta...

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  18. underset(r=1)overset(infty)sum"tan"^(-1)((1)/(1+r+r^2))=….......

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  19. Prove that 2tan^(-1)(sqrt((a-b)/(a+b))tantheta/2)=cos^(-1)((acostheta+...

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  20. If "tan"^(-1)x+"tan"^(-1)"1"/x={(pi//k,if", "xge0),(-pi//k,if", "xlt0)...

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