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(Cos^(-1)(41//49))/(Sin^(-1)(2//7))=...

`(Cos^(-1)(41//49))/(Sin^(-1)(2//7))=`

A

4

B

3

C

2

D

1

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • cos[Cos^(-1)(-1/7)+Sin^(-1)(-1/7)]=

    A
    `-1//3`
    B
    0
    C
    `1//3`
    D
    `4//9`

  • I. Tan^(-1)2+Tan^(-1)3=(3pi)/4 II. cos{Cos^(-1)((-1)/7)+Sin^(-1)((-1)/7)}=0

    A
    only I is true
    B
    only II is true
    C
    both I and II are true
    D
    neither I nor II are true

  • Cos^(-1)(Cos12)-Sin^(-1)(Sin12)=

    A
    0
    B
    `pi`
    C
    `8pi+24`
    D
    `8pi-24`

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