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Prove that sin square theta + cos square theta is equal to 1 |
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Answer» p square / h square plus b square / h square then result is p square plus b square /h square we know that p square plus b square is equal to h square and now h square / h square is 1 Take a right angle triangle ABC right angled at B now its measurement are AC=5;BC=4 : AB= 3 . for sinc C hy=5 and per =3 also for cos C hy= 5 and base = 4 now sin 2C+ cos2C= 9/25+16/25=1 ( sin2c mean sin square c)proved |
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