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in proving trigonometric identities if 1 + sin^2 theta is equal to 2 sin^2 theta + cos^2 theta. what is the correct answer?

  • trig -

    prove : 1 + sin^2 Ø = 2sin^2 Ø + cos^2Ø

    this one is really easy

    LS = 1 + sin^2 Ø
    = sin^2 Ø + cos^2 Ø + sin^2Ø
    = 2sin^2 Ø + cos^2 Ø
    = RS

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