sin 20° tan A sec 70°=root 3
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sin20° tanA sec 70°=√3
or sin 20° tanA 1/cos 70°=√3
or sin 20° tanA /sin(90°-70°)=√3
or sin 20° tanA /sin 20°=tan60°
or tanA=tan 60°
.•. A=60° answer
or sin 20° tanA 1/cos 70°=√3
or sin 20° tanA /sin(90°-70°)=√3
or sin 20° tanA /sin 20°=tan60°
or tanA=tan 60°
.•. A=60° answer
kittu49:
welcome
Answered by
1
Hi ,
Sin20 tanAsec70° = √3
Sin( 90 - 70 ) sec70° tanA = √3
(Cosec70° sec 70° ) tanA = √3
TanA = √3
TanA = tan 60°
Therefore ,
A = 60°
I hope this helps you.
:)
Sin20 tanAsec70° = √3
Sin( 90 - 70 ) sec70° tanA = √3
(Cosec70° sec 70° ) tanA = √3
TanA = √3
TanA = tan 60°
Therefore ,
A = 60°
I hope this helps you.
:)
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