Use the trigonometric function values of the quadrantal angles to evaluate. 6 sin 0° +5 sin...

Question

Question

Use the trigonometric function values of the quadrantal angles to evaluate. 6 sin 0° +5 sin 270° 6 sin 0° +5 sin 270° (Simpli

Answer 1

Answer #1

Sin(0°) = 0

Sin(270°) = sin(180°+90°)

= - sin(90°)

= -1

So,

6 sin(0°) + 5 sin(270°) = 6×0 + 5× (-1)

= 0- 5 = -5

Answer 2

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