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if sqrt(x^2+y^2)=ae^(tan^-1 (y/x)) , a >...

if `sqrt(x^2+y^2)=ae^(tan^-1 (y/x)) , a > 0, (y(0) > 0)` then `y"(0)` equals

A

`(2)/(a)e^(-pi//2)`

B

`-(2)/(a)e^(pi//2)`

C

`-(2)/(a)e^(-pi//2)`

D

`e`

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The correct Answer is:
C
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-MOCK TEST 3-MCQS
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  11. if p implies(q ^^ r) is false, then the truth values of p, q and r ar...

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  12. Find the value of expression 1 / (cos 290^@) + 1 / (sqrt3 sin 250^@)

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