What is cos(arcsin(18x)) ?

The solution to cos(arcsin(18x)) is sqrt(1-324x^2)

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simplify cos(arcsin(18x))

simplify

cos (arcsin (18 x))

1 - 324 x^{2}

Solution steps

cos (arcsin (18 x))

Use the following identity:

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

= 1 - (18 x)^{2}

Simplify

= 1 - 324 x^{2}

sec (- θ)

2 sin (nπ) - sin (2 nπ)

sec (arccos (x))

tan (arccos (3 x))

sin (12 0^{\circ} - x)