Prove that tan71= cos26+sin26/cos26-sin26 Share with your friends Share 5 Rajat Sethi answered this tan71°=tan(45°+26°)tan71°=tan45°+tan26°1-tan45°tan26°...[Using tan(A+B)=tanA+tanB1-tanA.tanB]tan71°=1+sin26°cos26°1-sin26°cos26°tan71°=cos26°+sin26°cos26°-sin26° 21 View Full Answer