Q.12 If cosec 0 = 2 then find the value of tan o will be
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1
Answer:
Step-by-step explanation:
Given, cscA=2
We know,
sinA=
cscA
1
=
2
1
And, sin30=
2
1
A=30
tan30=
3
1
and cos30=
2
3
To find the value of
tanA
1
+
1+cosA
sinA
=
tan30
1
+
1+cos30
sin30
=
3
1
1
+
1+
2
3
2
1
=
3
+
2
2+
3
2
1
=
3
+
2+
3
1
=
2+
3
2
3
+3+1
=
2+
3
2
3
+4
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