( sin^4theta - tan^4theta)=sec^2theta + tan^2theta
Answers
Answered by
1
Step-by-step explanation:
Use the identity:
1
+
tan
2
θ
=
sec
2
θ
sec
4
θ
−
tan
4
θ
=
(
sec
2
θ
−
tan
2
θ
)
(
sec
2
θ
+
tan
2
θ
)
=
1
(
sec
2
θ
+
tan
2
θ
)
=
sec
2
θ
+
tan
2
θ
=
1
+
tan
2
θ
+
tan
2
θ
=
1
+
2
tan
2
θ
∴
=
Right Hand Side
Answered by
0
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