Prove that
cot A - tan A/
1- 2 sin^2 A=
sec A cosec A
Answers
Answered by
1
Answer:
L.H.S. =(sinA−cosA)(1+
sinA
cosA
+
cosA
sinA
)
=
sinAcosA
1
(sinA−cosA)(sin
2
A+cos
2
A+sinA−cosA)
=
sinAcosA
sin
3
Acos
3
A
=
cosA
sin
2
A
−
sinA
cos
2
A
=
csc
2
A
secA
−
sec
2
A
cscA
.
Step-by-step explanation:
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