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If y= cos ax and yn is n^(th) derivative...

If y= cos ax and `y_n` is `n^(th)` derivative of y, then
`|{:(y,y_1,y_2),(y_3,y_4,y_5),(y_6,y_7,y_8):}|` is equal to

A

1

B

-1

C

0

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
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TARGET PUBLICATION-DIFFERENTIATION -EVALUATION TEST
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  4. If y= cos ax and yn is n^(th) derivative of y, then |{:(y,y1,y2),(y3...

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  17. If y=tan^(-1)1/(1+x+x^2)+tan^(-1)1/(x^2+3x+3)+tan^(-1)1/(x^2+5x+7)++ u...

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  18. If y=a sin (bx+c), then yn=

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  19. If f(x)=x^(n),"n" epsilon N, then the value of f(1)-(f^(')(1))/(1!)+(f...

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  20. If p=a^2cos^2theta+b^2 sin^2 theta, where a^2+b^2+c^2 ,then 4p+(d^2p)...

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