Question

plzz i need answer argent with explaination. plzz solve it for 20 points​

Answer 1

Sin(pi-theta)=sin theta

If we take theta as (-theta)

Then sin(pi + theta)=sin(-theta)

Sin(-theta)= -sin(theta)

So option 4 is correct

PLEASE MARK ME AS BRAINLIEST

Answer 2

Step-by-step explanation:

WE KNOW THAT sine function is positive only in 1 and 2 quadrant

HENCE,

sin(π+theta) = –sin(theta)