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Mathematics
Mathematics
Problem
Simplify the expression
(
1
−
sin
θ
)
(
1
+
sin
θ
)
+
tan
2
θ
cos
2
θ
(1-\sin\theta)(1+\sin\theta)+\tan^2\theta\,\cos^2\theta
(
1
−
sin
θ
)
(
1
+
sin
θ
)
+
tan
2
θ
cos
2
θ
for any acute angle
θ
\theta
θ
. a)
1
+
sin
2
θ
1+\sin^2\theta
1
+
sin
2
θ
b)
sin
2
θ
\sin^2\theta
sin
2
θ
c)
1
1
1
d)
tan
2
θ
\tan^2\theta
tan
2
θ
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