Question

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Answer 1

1) 1 ,2) 1 ,3) cos theta 4) sin theta 5) sinA cosB + cosA sinB 6) sinA cosB - cosA sinB 7) cosA cosB - sinA sinB 8) cosA cosB + sinA sinB

Answer 2

Answer:

Q.1= 1

Q.2= 1

Q.3= COS theta

Q.4= SIN theta

Q.5= sin A cos B + cos A sin B

Q.6= sin A cos B − cos A sin B

Q.7= cos A cos B − sin A sin B

Q.8= cos A cos B + sin A sin B

$q.9 = sin \: 0 = 0 \: .sin \: 30 = \frac{1}{2} .sin \: 45 = \frac{1}{ \sqrt{2} } .sin \: 60 = \frac{ \sqrt{3} }{2} .sin \: 90 = 1$

$q.10 = cos \: 0 = 1.cos \: 30 = \frac{ \sqrt{3} }{2} .cos \: 45 = \frac{1}{ \sqrt{2} } .cos \: 60 = \frac{1}{2} .cos \: 90 = 0$