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" 7."(cos15^(@)+sin15^(@))/(cos15^(@)-si...

" 7."(cos15^(@)+sin15^(@))/(cos15^(@)-sin15^(@))=sqrt(3)

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(cos 75^(@)+cos15^(@))/(sin75^(@)-sin 15^(@))=sqrt(3)

(cos 75^(@)+cos15^(@))/(sin75^(@)-sin 15^(@))=sqrt(3)

(cos 15^(@) + sin 15^(@))/(cos 15^(@) - sin 15^(@)) =

(cos15^(@)+sin15^(@))/(cos15^(@)-sin15^(@))=(i)1(ii)sqrt(3)(iii)(1)/(sqrt(3))(iv)2+sqrt(3)

sin15^(@)+cos105^(@)=?

sin75^(@)-sin15^(@)=cos105^(@)+cos15^(@)

The value of (cos 15^(@) - sin 15^(@))/(cos 15^(@) + sin 15^(@) is

Evaluate ((cos15^(@)-sin15^(@)+1)/(cos15^(@)+sin15^(@)+1))((1+sin15^(@))/(cos15^(@)))

Prove the following: frac(cos15^@-sin15^@)(cos15^@+sin15^@)=1/sqrt3