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Chapter 7: Q.14 (page 473)

Rewrite over a common denominator:

11-cos(v)+11+cos(v)

Short Answer

Expert verified

The simplified expression can be given as2sin2(v)

Step by step solution

01

Given information

We are given an expression11-cos(v)+11+cos(v)

02

On cross multiplying

We get,

11-cos(v)+11+cos(v)=1+cos(v)+1-cos(v)(1-cos(v))(1+cos(v))=21-cos2(v)=2sin2(v)

03

Conclusion

The simplified expression can be given as

2sin2(v)

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