Question

how to express sin 194 degrees less than 45 degrees

Answer 1

Answer:

The sine is defined as the ratio between the opposed side and the hypothenuse. Therefore, sin45o=1√2=√22 . In decimal form, it is roughly 0.7071067812 .

Answer 2

Answer:

Sin (-65 degree)

=> - Sin 65 because Sin (- theta) = - Sin theta

=> - Cos ( 90 - 25) because Cos is positive in 1st quadrant, So there will be no change in sign of cos

=> - Cos 25 degree is the answer

Step-by-step explanation:

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