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[" Evaluate: "],[(cos^(2)(45^(@)+theta)+...

[" Evaluate: "],[(cos^(2)(45^(@)+theta)+cos^(2)(45^(@)-theta))/(tan(60^(@)+theta)times tan(30^(@)-theta))+(cot30^(@)+sin90^(@))times(tan60^(@)-sec0^(@))],[(cos^(2)(45^(@)+theta)times tan(30^(@)-theta))/(tan(30^(@)-theta))+(cot30^(@)+sin90^(@))times(tan60^(@)-sec^(@)0^(@))]

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Evaluate : (cos^(2)(45^(@) + theta)+ cos^(2) (45^(@) -theta))/(tan(60^(@) + theta) xx tan(30^(@) - theta))+(cot30^(@) + sin 90^(@))xx (tan60^(@) -sec0^(@))

Evaluate : (cos^(2)(45^(@) + theta)+ cos^(2) (45^(@) -theta))/(tan(60^(@) + theta) xx tan(30^(@) - theta))+(cot30^(@) + sin 90^(@))xx (tan60^(@) -sec0^(@))

What is (cos^(2)(45^(@)+theta)+cos^(2)(45^(@)-theta))/(tan(60^(@)+theta)tan(30^(@)-theta)) equal to ?

Evaluate : (cos^(2)(45+theta)+cos^(2)(45-theta))/(tan(60^(@)+theta)tan(30^(@)-theta))+cos ec(75^(@)+theta)-sec(15^(@)-theta)

Evaluate : (cos^2(45 + theta) + cos^2(45 - theta))/(tan(60^@ + theta) tan(30^@ - theta)) + cosec(75^@ + theta) - sec(15^@ - theta)

(cos0^(@)+sin90^(@))xx(tan30^(@)xxtan60^(@)) is:

tan theta+tan(90^(@)-theta)=sec theta xx sec(90^(@)-theta)

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Prove that (cos(90^(@)+theta)sec(-theta)tan(180^(@)-theta))/(sec(360^(@)-theta)sin(180^(@)+theta)cot(90^(@)-theta))=-1