1. Tan 45°+tan 30° = 2. Sin 90°+cos60° = 3. Sin 30°×cos 60°+tan45° =
Matematika
ichaaa2626
Pertanyaan
1. Tan 45°+tan 30° =
2. Sin 90°+cos60° =
3. Sin 30°×cos 60°+tan45° =
2. Sin 90°+cos60° =
3. Sin 30°×cos 60°+tan45° =
2 Jawaban
-
1. Jawaban ullyalfi
1. 1+ 1/3 √3 = 1 1/3 √3
2. 1+ 1/2 = 1 1/2
3. 1/2 x 1/2+1 = 1 1/4 -
2. Jawaban RioC
Bab : Trigonometri
1). Tan 45°+ tan 30°
= 1 + (1/3)√3
= (3/3)√3 + (1/3)√3
= (4/3)√3
2). Sin 90°+ cos60°
= 1 + 1/2
= 2/2 + 1/2
= 3/2
3). Sin 30° × cos 60° + tan45°
= 1/2 × 1/2 + 1
= 1/4 + 1
= 1/4 + 4/4
= 5/4