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Ashish00077:
tan theta will be =1/root3
means for principal values it is pi upon 6
and 3 theta is equal to pi upon six into 3
so three theta is pi upon 2
and sin pi upon 2 is 1. ans...
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Answered by
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✓3tanθ = 1
tanθ = 1/✓3
So,
θ = 30°
Therefore,
sin3θ = 3sinθ - 4sin³θ
= 3sin30° - 4sin³30°
= 3(1/2) - 4(1/2)³
= 3/2 - 4/8
= 3/2 - 1/2
= 3-1/2
= 2/2
= 1 ....... Answer
Hope this helps you....:)
tanθ = 1/✓3
So,
θ = 30°
Therefore,
sin3θ = 3sinθ - 4sin³θ
= 3sin30° - 4sin³30°
= 3(1/2) - 4(1/2)³
= 3/2 - 4/8
= 3/2 - 1/2
= 3-1/2
= 2/2
= 1 ....... Answer
Hope this helps you....:)
u can do it in another way
ohk
sin3*30°=sin90°=1
but it is wrong
we have to apply the formula here
Hmm I also think so
thank you
wlc
mark my answer BRAINLIEST
thx..
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