Question

somebody help plz....

Answer 1

It's very simple. put the given values and solve it ,answer should be 1. (20/29)^2 + (21/29)^2 = 400/841 + 441/841 = (400+441)/841 = 841/841 = 1ans.

Answer 2

ANSWER:-- One (1).

Let angle theta be ' x ' .

Given:- Cos(x) = 20/29.

Sin(x) = 21/29.

So, Cos^2(x) + Sin^2(x) = 1. [ fundamental trigonometric identity ]

Calculative Process:-

→ (20/29)^2 + (21/29)^2

→ (400/841) + (441/841)

→ (841/841) = 1.

Hope it will be helpful.⚔️