as you already know, to get the inverse of any expression we start off by doing a quick switcheroo on the variables and then solving for "y", let's do so.

Sin 20° · sin 40° · sin 80° = 1/2 ( cos 20° - cos 60° ) · sin 80° =
= 1/2 ( cos 20° sin 80° - cos 60° sin 80° ) =
= 1/2 ( (sin 100° + sin 60°)/2 - 1/2 sin 80° )= ( sin 100° = sin 80° )
= 1/2 · ( 1/2 sin 60° ) = 1/4 sin 60° = √3 / 8
sin 60° = √ 3/2
√ 3 / 2 · √ 3 / 8 = 3/16 ( correct )
Answer:
Step-by-step explanation:
supplementary angles sum = 180
Measurement of Measure of its
an angle Supplement
80° 180 - 80 = 100°
25° 180 - 25 = 155°
119° 180 - 119 = 61°
x 180 - x
Answer:
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Step-by-step explanation:
really? oh wait....... I looked it up