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| 1. |
Prove That Sin^2X + Cos^2X = 1 |
| Answer» Sin2 $= p2/h2Cos2 $=b2/h2=) sin2 $ + cos2 $= p2/h2 + b2/h2= ( p2 + b2)/ h2 = h2/h2 = 1Hence proved | |