Question

If 6 cos A + 3 then 2 sin A is

Answer 1

Answer:

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Answer 2

SOLUTION

CORRECT QUESTION

If 6 cos A = 3 then 2 sin A is

EVALUATION

Here it is given that

$\displaystyle \sf{ 6 \: cos A = 3 }$

$\displaystyle \sf{ \implies cos A = \frac{3}{6} }$

$\displaystyle \sf{ \implies cos A = \frac{1}{2} }$

$\displaystyle \sf{ \implies cos A = cos {60}^{ \circ} }$

$\displaystyle \sf{ \implies A = {60}^{ \circ} }$

Thus we have

$\displaystyle \sf{ = sin A }$

$\displaystyle \sf{ = sin {60}^{ \circ} }$

$\displaystyle \sf{ = \frac{ \sqrt{3} }{2} }$

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