May 2020 1 12 Report
Nilai dari:
tan( \frac{\pi}{3} + a).tan( \frac{\pi}{3} - a)
jika diketahui Sin a = 4/5 adalah....
#dengan rumus
• tan (a+b) = 2 Sin (a+b) / cos (a+b)+ cos (a-b)
• tan (a-b) = 2 Sin (a-b) / cos (a+b) + cos (a-b)

ket: rumusnya untuk mencari soal diatas oke, tolong di bantu ya, saya gak paham cara masukinnya
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