Question

if sinA=3/4 then find tanA

Answer 1

sure we have signed a is equal to 3 by 4 from this formula P by as you can take the perpendicular and hyper news from this you can able to find its base then you apply the formula of tan that is P by bso then you can put the given values that you find and that are already given to you and you can take the real and correct answer of tan A

Answer 2

sinA = 3/4
P/H = 3/4
let P= 3k n H = 4k
now by Pythagoras theorem,
Psq. + Bsq.= Hsq.
(3k)sq. + Bsq. = (4k)sq.
Bsq.= 16ksq. - 9ksq.
Bsq.= 7ksq.
B= k√7
now tanA = P/B
tanA= 3k/k√7
tanA= 3/√7.
HOPE IT HELPS!