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Popular >

simplify 2cos(90+A)

Solution

simplify

2 cos (9 0^{\circ} + A)

Solution

- 2 sin (A)

Solution steps

2 cos (9 0^{\circ} + A)

Rewrite using trig identities

= 2 (- sin (A))

Remove parentheses:

(- a) = - a

= - 2 sin (A)

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Frequently Asked Questions (FAQ)

What is 2cos(90+A) ?
The solution to 2cos(90+A) is -2sin(A)