-1-cot αIf tan A+ sin A= m and tan A-sinA= n, then(m2 -n21is equal to – InterviewSolution

1.	-1-cot αIf tan A+ sin A= m and tan A-sinA= n, then(m2 -n21is equal tomn(a) 4(c) 16(b) 3(d) 9
Answer» nice solution. thank you.

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