sin ^2a(1+tan^2 a) =......... a. sin ^2 a + cot ^2 a b. sin ^2 a + tan ^2 a c. 1 d. tan ^2 a e. -1
Matematika
nagita1710
Pertanyaan
sin ^2a(1+tan^2 a) =.........
a. sin ^2 a + cot ^2 a
b. sin ^2 a + tan ^2 a
c. 1
d. tan ^2 a
e. -1
a. sin ^2 a + cot ^2 a
b. sin ^2 a + tan ^2 a
c. 1
d. tan ^2 a
e. -1
1 Jawaban
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1. Jawaban Rm1205
sin ^2 a (1+ tan^2 a) = sin^2 a ( sec^2 a)= sin^2 a(1/cos^2 a) = sin^2 a/cos ^2 a = tan ^2 a