, if 0 = 30°, verify that : tan 20 =
2tan0 / 1- tan2 0
Answers
Answered by
6
Answer:
Given: x=30
0
,
To Prove: tan2x=
1−tan
2
x
2tanx
L.H.S: tan2x=tan60
0
=
3
R.H.S:
1−tan
2
x
2tanx
=
1−tan
2
30
0
2tan30
0
=
1−(
3
1
)
2
2(
3
1
)
=
3
2
2(
3
1
)
=
3
Thus, L.H.S.=R.H.S
Hence 1 is answer
Attachments:
Similar questions