If cos theta 04 costheta pi 04 04 04 pi 04 pi If sin th

If cos theta = 0.4, cos(theta + pi) = 0.4 -0.4 0.4 + pi -0.4 + pi If sin theta = -0.8, sin(theta + pi) = 0.8 + pi -0.8 0.8 -0.8 + pi If tan(theta + pi) = 3, tan(theta) = -3 pi + 3 3 pi - 3

Solution

31)cos(+) =-cos

given cos=0.4

therefore cos(+) =-0.4

32)sin(+)=-sin()

given sin()=-0.8

sin(+)=-(-0.8)

therefore sin(+)=0.8

33)tan(+)=3

tan(+)=tan()

therefore tan()=3