Please answer all. I will mark brainlist
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Please answer all. I will mark brainlist
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2) tanA= 3/4
Perpendicular/Base = 3/4. (as tan= p/b)
So perpendicular=3x and base=4x
By Pythagoras hypotenuse =5x
Then SecA= Hypotenuse/Base
SecA=5x/4x
SecA=5/4
CosA= 1/SecA
Cos A=1/(5/4)
Cos A= 4/5
Hope it helps....