Question

If 4 cos? 0 - 1 = 0, then the value of cos eco
3
1)
2) 12
37
2
Cos (270° - 0) + Sin (180° - 0) =
1) 1
2) 2
3)
Sin (- 0) + Sin (90° + 0) =
2
1) Sin A - Cos 0​

Answer 1

1)

2) 12

37

2

Cos(270°_0)+ sin (180°_0)