Please it would be grateful if any body could solve the following questions - - Prove that sin(180/14) sin(3*180/14) sin(5*180/14) sin(7*180/14) =1/8 .
- If sin x + sin y = 3(cos y – cosx) , Prove that sin 3x + sin 3y=0 .
- Prove that tan2180/16 + tan22*180/16 + tan23*180/16 +..........+ tan27*180/16 = 35 .
Please it would be grateful if any body could solve the following questions -
- Prove that sin(180/14) sin(3*180/14) sin(5*180/14) sin(7*180/14) =1/8 .
- If sin x + sin y = 3(cos y – cosx) , Prove that sin 3x + sin 3y=0 .
- Prove that tan2180/16 + tan22*180/16 + tan23*180/16 +..........+ tan27*180/16 = 35 .
chetna bansal , 10 Years ago
Grade 11
