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Byju's Answer
Standard XII
Mathematics
Trigonometric Ratios Using Right Angled Triangle
Prove the ide...
Question
Prove the identity
sin
θ
c
o
s
e
c
θ
+
cos
θ
sec
θ
=
1
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Solution
L.H.S
=
sin
θ
c
o
s
e
c
θ
+
cos
θ
sec
θ
=
sin
θ
1
sin
θ
+
cos
θ
1
cos
θ
=
sin
2
θ
+
cos
2
θ
=
1
= R.H.S
Hence Proved.
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Q.
Prove the following trigonometric identities.
(cosecθ + sinθ) (cosecθ − sinθ) = cot
2
θ + cos
2
θ