What is value of cosAcos-90 deg-A-sinAsin-90 deg-A-

Dear Student, Identities used sin (90 A) = cos A cos (90 A) = sin A sin A.sin (90 A) nbsp;cos A.cos (90 A) = nbsp;sin A.cos A nbsp; nbsp;co ...

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Basic Inverse Trigonometric Functions

What is value...

Question

What is value of cosAcos(90°-A)-sinAsin(90°-A)?

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- 1 + \frac{s i n A s i n (90^{\circ} - A)}{c o t (90 - A)} = - {s i n}^{2} A .

For what value of A is sin A = cos A?

$A A$

$\times A A - ---------- -$

$A A$

$+ A A \times - -------- -$

$A B A - --------- -$

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