tan60=2tan30/1-tan^30
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2tanx /1-tan^x = tan 2x
here x=30
so tan 2x = tan60
here x=30
so tan 2x = tan60
reem060503:
why x??
but are we supposed to subsitute root 3 in place of tan 60?
let x = 30 degreee
okay
and then how did u get tan 2x
bro there is a formula for tan 2x which i wrote firste
ohh okay
wait can u explain please
ummm uh can prove it by putting value of tan30also
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