Question 1110752
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If 0 degrees < A, B < 90 degrees, and sinA = cosB, then A + B = {{{pi/2}}}.


{{{cot(pi/2)}}} = 0.


<U>Answer</U>.  If 0 degrees < A, B < 90 degrees, and sinA = cosB,  thencot(A+B) = 0.
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<U>The lesson to learn from this solution</U>:  &nbsp;&nbsp;&nbsp;&nbsp;If 0 degrees < A, B < 90 degrees, and sinA = cosB, then A + B = {{{pi/2}}}.