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Popular >

simplify cos(x+90)

Solution

simplify

cos (x + 9 0^{\circ})

Solution

- sin (x)

Solution steps

cos (x + 9 0^{\circ})

Rewrite using trig identities

= - sin (x)

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Frequently Asked Questions (FAQ)

What is cos(x+90) ?
The solution to cos(x+90) is -sin(x)