2*cos^2 77°+1+2*cos^2 13°/5*sec^2 25°+8-5*cot^2 65

1.	2cos^2 77°+1+2cos^2 13°/5sec^2 25°+8-5cot^2 65
Answer» Change any cos into sin and sec into cosec...... U will get formulae... Apply them..

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