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Maths CBSE Live product
Class 10
Introduction to trigonometry
Revision
2.
Verify the given trigonometric equation
Question:
5
m.
Answer variants:
1
+
cos
A
1
−
cos
A
×
1
+
cos
A
1
+
cos
A
1
+
cos
A
1
−
cos
A
×
1
−
cos
A
1
−
cos
A
1
+
cos
A
sin
A
1
+
cos
A
2
sin
2
A
1
+
cos
A
2
1
+
cos
2
A
1
+
cos
A
2
1
−
cos
2
A
1
sin
A
+
cos
A
sin
A
Verify that
1
+
cos
A
1
−
cos
A
\(=\)
cosec
A
+
cot
A
.
Proof
:
LHS \(=\)
1
+
cos
A
1
−
cos
A
\(=\)
\(=\)
\(=\)
\(=\)
\(=\)
\(=\)
cosec
A
+
cot
A
\(=\) RHS
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