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Mathematics
Mathematics
Problem
Simplify
[
csc
2
(
90
∘
−
θ
)
−
cot
2
(
90
∘
−
θ
)
]
(
sec
2
θ
−
tan
2
θ
)
\big[\csc^2(90^\circ-\theta)-\cot^2(90^\circ-\theta)\big] \,(\sec^2\theta-\tan^2\theta)
[
csc
2
(
9
0
∘
−
θ
)
−
cot
2
(
9
0
∘
−
θ
)
]
(
sec
2
θ
−
tan
2
θ
)
. a)
tan
2
θ
\tan^2\theta
tan
2
θ
b)
1
1
1
c)
0
0
0
d)
−
1
-1
−
1
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