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If "sin"^(-1)(5)/(x)+"sin"^(-1)(12)/(x)=...

If `"sin"^(-1)(5)/(x)+"sin"^(-1)(12)/(x)=(pi)/(2)`, then the value of x is -

A

`pm13`

B

13

C

`(13)/(7)`

D

`pm (13)/(7)`

Text Solution

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The correct Answer is:
B
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CHHAYA PUBLICATION-MCQ ZONE -Question Paper 5
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  10. The value of the determinant |(b^(2)c^(2),bc,b+c),(c^(2)a^(2),ca,c+a),...

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  11. If |(cos(A+B),-sin(A+B),cos2B),(sinA,cosA, sinB),(-cosA, sinA, cosB)|=...

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  13. If 1, omega, omega^(2) are the cube roots of unity, then the value of...

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  14. If |(x+1,1,1),(2,x+2,2),(3,3,x+3)|=0, then the value of x is -

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  15. If A=[(-i,0),(0,i)] then A^(T)A is equal to -

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  16. If A=[(-1,2),(2,-1)], B=[(5),(7)] and AX=B then X is equal to -

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  17. If i=sqrt(-1),P=[(i,0,-i),(0,-i,i),(-i,i,0)] and Q=[(-i,i),(0,0),(i,-...

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