Question

Answer the question 25 first

Answer 1

Answer:

$a) \\ given \: \: sin \: a = \frac{3}{4} | \frac{opp}{hyp} | \\ by \: using \: pythagoras \: theorem \\ {4}^{2} = {x}^{2} + {3}^{2} \\ 16 - 9 = {x}^{2} \\ \sqrt{7} = x \\ cos \: a = \frac{ \sqrt{7} }{4} \\ tan \: a = \frac{3}{ \sqrt{7} }$