Pertanyaan

Bentuk sederhana dari cos α . cot α + sin α adalah …

cosec α
sec α
tan α
cos α
sin α

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H. Eka

Master Teacher

Mahasiswa/Alumni Universitas Pendidikan Indonesia

Jawaban terverifikasi

Pembahasan

$cos space straight alpha space. space cot space straight alpha plus sin space alpha equals cos space alpha space. fraction numerator cos space alpha over denominator sin space alpha end fraction plus sin space alpha equals fraction numerator cos squared space alpha over denominator sin space alpha end fraction plus fraction numerator sin squared space alpha over denominator sin space alpha end fraction equals fraction numerator cos squared space alpha plus sin squared space alpha over denominator sin space alpha end fraction equals fraction numerator 1 over denominator sin space alpha end fraction equals cosec space straight alpha$