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Sin theta = 4/5

i got 53.1 as an answer but on my answer sheet is also has 126.9

How do i get that 126.9?

  • Trig -

    Both answers are correct. sine is positive in the first and second quadrant, and the sine of an angle equals the sine of its supplementary angle.

    180.00 - 53.13 = 126.87

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