Mathematics, 21.11.2019 04:31 loyaltyandgood
Which trig expression is equal to sin (72° - a)?
a) cos 18°
b) sin 18°
c) cos (90° - (72° - a))
d) sin (90° - (72° - a ))
Answers: 2
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Which trig expression is equal to sin (72° - a)?
a) cos 18°
b) sin 18°
c) cos (90...
a) cos 18°
b) sin 18°
c) cos (90...
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