Question

A lies in second quadrant and 3 tan A + 4= 0, then the value of 2 cot A -5 cos A + sin A is equal to: *

1 point


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Answer 1

Answer:

Tan A = -4/3, cot A = -3/4, cos A = -3/5, sin A = 4/5.

So

$2 \times ( - \frac{3}{4} ) - 5 \times ( - \frac{3}{5} ) + \frac{4}{5} = - \frac{3}{2} + 3 + \frac{4}{5} = \frac{ - 15 + 30 + 8}{10} = \frac{23}{10}$

Ans.