3 years ago

If cos theta = -4/7 what are the values of sin theta and tan theta?

1 answer:

4 0

cosθ = ⁻⁴/₇
cos⁻¹(cosθ) = cos⁻¹(⁻⁴/₇)
θ = 124.8499046

sinθ = sin(124.8499046) = 0.820651806
tanθ = tan(124.8499046) = -1.436140661

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