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Popular >

simplify cos(θ+90)

Solution

simplify

cos (θ + 9 0^{\circ})

Solution

- sin (θ)

Solution steps

cos (θ + 9 0^{\circ})

Rewrite using trig identities

= - sin (θ)

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Frequently Asked Questions (FAQ)

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