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Chapter 7: Q.13 (page 473)

Rewrite over a common denominator:

sin(胃)+cos(胃)cos(胃)+sin(胃)+cos(胃)sin(胃)

Short Answer

Expert verified

on simplifying over common denominator we get,

1+2sin(胃)cos(胃)sin(胃)cos(胃)

Step by step solution

01

Given information

We are given a equationsin(胃)+cos(胃)cos(胃)+sin(胃)+cos(胃)sin(胃)

02

On cross multiplying 

We get,

sin2(胃)+sin(胃)cos(胃)+sin(胃)cos(胃)+cos2(胃)sin(胃)cos(胃)=sin2(胃)+cos2(胃)+2sin(胃)cos(胃)sin(胃)cos(胃)=1+2sin(胃)cos(胃)sin(胃)cos(胃)

03

Conclusion

On simplifying we get1+2sin(胃)cos(胃)sin(胃)cos(胃)

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