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If the angle A of a triangle ABC is give...

If the angle A of a triangle ABC is given by the equation 5 cos A + 3 = 0, then sin A and tan A are the roots of the equation

A

`15x ^(2) - 32 x + 16 =0`

B

`15x ^(2)+ 8x-16 =0`

C

`15 x ^(2) + 32 x + 16 =0`

D

none of these

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The correct Answer is:
B
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FIITJEE-MATHEMATICS -ASSIGNMENT (SECTION(I) MCQ(SINGLE CORRECT)
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  3. If the angle A of a triangle ABC is given by the equation 5 cos A + 3 ...

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  4. If 1 < x < sqrt2, then number of solutions of the equation tan^-1(x-1)...

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  15. If tan alpha = (1)/(sqrt (x (x ^(2) + x + 1))). tan beta = (sqrtx)/(sq...

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  16. If int (0) ^(y) cos t ^(2) dt= int (0) ^(x ^(2)) (sint)/(t ) dt then ...

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  17. If tan theta.tan phi = sqrt ((a -b)/(a +b)), then (a -b cos 2 theta)(...

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