tan (π/6) + sin (5π/3) . cos (- 3π/4)
= tan 30° + sin 300° . cos (- 135°)
= tan 30° + sin (360° - 60°) . cos 135°
= tan 30° + (- sin 60°) . cos (180° - 45°)
= tan 30° + (- sin 60°) . (- cos 45°)
= tan 30° + sin 60° . cos 45°
= (1/3)√3 + (1/2)√3 . (1/2)√2
= (1/3)√3 + (1/4)√6
= (4/12)√3 + (3/12)√6
= (4√3 + 3√6)/12
357,953 is the correct answer kiddo
Answer:
6 ≤x<∞
Step-by-step explanation:
The inside of the square root must be greater than or equal to zero
x-6≥0
x-6+6≥0+6
x≥6
6 ≤x<∞
6 / QR = 12 /8
12QR = 48
QR = 4 Answer
6 / 4 = (7 + QS) / 7
28 + 4QS = 42
4QS = 14
QS = 3.5
so PS = 7 + 3.5 = 10.5 Answer