3 years ago

Trigonometric identities

1 answer:

7 0

Without knowing what Juan's exact steps were, it's hard to say what he did wrong. The least you could say is that his solution is simply not correct.

4 sin²(θ) - 1 = 0

==> sin²(θ) = 1/4

==> sin(θ) = ±1/√2

==> θ = π/4, 3π/4, 5π/4, 7π/4

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dimulka [17.4K]

Answer:

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