sin x = cos 54 = sin (90-54) = sin 46
Hence x = 46 deg
Same technique. Sin 21 = cos (5x+9) = sin (90-5x-9)
81-5x = 21
Or 5x = 60
Or x = 12 deg
hope it helps
Answer:
22
Step-by-step explanation:
(3² - 5 + 7) × (2² - 2)
(9 - 5 + 7) × (4 - 2)
(4 + 7) × (2)
11 × 2
22
X= 9/4 if finding the perfect square trinomial
Answer:
The root symbol (√ ) is used to represent the square root of any number.
