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Is sec^(-1)x= cosec^(-1)y, then the valu...

Is `sec^(-1)x= cosec^(-1)y`, then the value of `cos^(-1)(1/x)+cos^(-1)(1/y)` will be

A

`pi`

B

`(2pi)/3`

C

`(5pi)/3`

D

`pi/2`

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UNITED BOOK HOUSE-QUESTION PAPER 2016-EXERCISE
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  2. If P(A) = 3/7,P(B)=4/7,P(AnnB)=2/9 then the value of P(A//B) is

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  3. Is sec^(-1)x= cosec^(-1)y, then the value of cos^(-1)(1/x)+cos^(-1)(1/...

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  4. The solution of the differenbtial equation (dy)/(dx)=e^(x+y)is

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  5. If A is square matric and A^2=A,(I+A)^3-7A will be

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  6. The line (x-1)/2=(y-2)/-3=(z+5)/4 meets the plane 2x+4y-z= 3 at the po...

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  7. If f(x)= x^2/(1+x^2) then the range of f is

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  8. If |veca|=4,|vecb|=2 sqrt3 and |vecaxxvecb|=12 then the angle between ...

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  9. IF f(x)= logx(logx) then the value of f'(e) is

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  10. Evaluate: 4(2tan^(-1)(1/3)+tan^(-1)(1/7))

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  11. Evaluate: |[alpha, beta,gamma],[alpha^2,beta^2,gamma^2],[beta+gamma,ga...

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  12. IF A = ([2,-1],[-1,2]) and A^2-4A+3I = 0, where I is the unit matric o...

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  13. If f(x) = {(|sinx|/x, when x=0),(1, when x!=0):} then examine the co...

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  14. Find the differential coefficient of sin^(-1)((2x)/(1+x^2)) with respe...

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  15. Evaluate: int{1/(logex)-1/(logex)^2}dx

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  16. Find the differential equation of all circles which touch the x-axis a...

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  17. Evaluate: underset(x rarr 0)lim(loge(1+alphax)/(e^(2x)-1))

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  18. IF the projection of veca= lambda hati+hat j+4 hat k on vec b= 2hati+6...

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  19. Find the angle between the planes x-y+2z=9 and 2x+y+z=7.

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  20. If P(A//B)= 0.75, P(B//A) = 0.6 and P(A)=0.4 find the value of P(barA/...

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