0 < θ < 90°, tanθ + sinθ =m and tanθ - sinθ = n, where m ≠ n, – McqOptions

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1.	0 < θ < 90°, tanθ + sinθ =m and tanθ - sinθ = n, where m ≠ n, then the value of m2 - n2 is?
A.	(tan2θ + sin2θ)
B.	mn
C.	$$\sqrt {\text{mn}} $$
D.	(m2 + n2)
Answer» D. (m2 + n2)

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