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Mathematics
Mathematics
Problem
Evaluate the expression
(
sec
2
θ
−
tan
2
θ
)
2
+
(
csc
2
θ
−
cot
2
θ
)
2
sin
2
θ
+
cos
2
θ
\dfrac{(\sec^2\theta-\tan^2\theta)^2+(\csc^2\theta-\cot^2\theta)^2}{\sin^2\theta+\cos^2\theta}
sin
2
θ
+
cos
2
θ
(
sec
2
θ
−
tan
2
θ
)
2
+
(
csc
2
θ
−
cot
2
θ
)
2
. a)
0
0
0
b)
2
2
2
c)
1
1
1
d)
4
4
4
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