What is sqrt(sin^2(x)-1) ?

The solution to sqrt(sin^2(x)-1) is sqrt(-cos^2(x))

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simplify sqrt(sin^2(x)-1)

simplify

sin^{2} (x) - 1

- cos^{2} (x)

Solution steps

sin^{2} (x) - 1

Use the Pythagorean identity:

1 = cos^{2} (x) + sin^{2} (x)

1 - sin^{2} (x) = cos^{2} (x)

= - cos^{2} (x)

9 x^{2} + 6 x y + y^{2}

[\frac{3}{2 \cdot x + 1}]^{3}

5 - 3 x + y + 6

(a - b)^{- 1}

(3 - 6) y (- 2.4)