Solve Q. Evaluate: tan 1 2 cos - 1 5 3 Share with your friends Share 0 Amit Shukla answered this Dear Student, We have,tan12cos-153----(1)let,12cos-153=xcos-153=2x53=cos2xAs,we know;53=1-tan2x1+tan2x5+5tan2x=3-3tan2x5tan2x+3tan2x=3-5tan2x5+3=3-5tan2x=3-53+5On rationalizing, we gwt;tan2x=3-5232-52tan2x=3-524tanx=3-52x=tan-13-52now, in (1)tan(tan-13-52)=3-52 Hope, you will find this answer helpful. 2 View Full Answer
