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हे If A = B=60°, verify that(i) cos(A—B)=cosA cosB + sin(पं) sin (A - B) = sin A cos B - 005.tanA - tan B' i)jtan(A-B)= —————S ) 1+tanA tanB |
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Answer» tan (60-60) = tan60-tan60/1+tan60*tan60 LHS = tan 0 = 0 RHS = √3-√3/1+√3*√3 = 0/1+3 = 0 Like my answer if you find it useful! |
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