Question

Answer the question.​

Answer 1

Answer:

$given \\ \tan(theta) = 1 \\ therefore \: theta = \pi \div 4 \\ again \\ \sin(phy) = 1 \div \sqrt{2 } \\ phy = \pi \div 4 \\ \\ \cos(theta + phy) = \cos(\pi \div 4 + \pi \div 4) \\ \cos(\pi \div 2) = 0$

hope u understand......

Answer 2

Answer:

tan∅=1

tan45°=1

so, ∅=45°

and sinФ=1/√2

sin45=1/√2

so, Ф=45

now,

cos(∅+Ф)=cos(45+45)=cos90°=0

cos(Ф+∅)=0 ans.

Step-by-step explanation: