Answer:
35/4 =8¾
Step-by-step explanation:
using pythagoras theorem
hyp²=opp²+adj²
recall that tanX= opp/adj
taking our opposite side to be 3 and the adjacent side to be 4 , the hyp² = 3²+4²
hypotenuse = 5
recall also that , sinX = opposite /hypotenuse
= 3/5
CosX= adjacent /hypotenuse
=4/5
so we've known tanx = 3/4 cosX = 4/5 sinx= 3/5
substitute these values into your equation
it will give us 3/5 + 4/5 divided by 4/5 ×(1-4/5)
=35/4 = 8¾
