Buktikan kebenaran (1+sin t) (1-sin t) = 1/sec^t
Matematika
Ikapratiw
Pertanyaan
Buktikan kebenaran (1+sin t) (1-sin t) = 1/sec^t
1 Jawaban
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1. Jawaban Jawer17
(1 + sint)(1 - sint) = 1 - sin²t
= cos²t
= 1/(1/cos²t)
= 1/sec²(t)