1.(sec A +Tan A)(1-Sin A)=
2.If Tan( A+B)=1 then Sin(A+B)=
3.Tan 0.Tan 1.Tan 2.........Tan 90=
4.perimeter of square and circumference of circle are equal then...........is more
5.sin 0 .sin 10. sin 30. sin 80. sin 90=
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1. Sol= (1/cos A + sinA/cosA)(1-sinA) = (1+sina)(i-sina)/cosA= 1-sin2A/cosA =cos2A/cosA = cosA
2. Sorry i donno
3. Ans=1
4. Ans= side/area of square is more
5. Sin0. Sin10. Sin30. Sin80. Sin90= cosec90. Cosec80. Sin30. Sin80. Sin90= 1/sin90. 1/sin80. Sin 30. Sin80. Sin90 = sin30 = 1/2
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