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Nilai dari frac sin 170 ° -sin 70 ° cos 80 ° -cos -20 ° adalah . . . . A. −2 B. - square root of 3 C...
4 months ago
Q:
Nilai dari frac sin 170 ° -sin 70 ° cos 80 ° -cos -20 ° adalah . . . . A. −2 B. - square root of 3 C.-1 D.1 E. square root of 3 A B C D E
Accepted Solution
A: