Answer:
True.
Step-by-step explanation:
Given,
4cos2 (4x) - 3 = 0
Now, 4π/24 = π/6
Or, cos π/6 = √3/2
Or, cos^2 π/6 = 3/4
Or, 4 cos^2 π/6 = 3
Now, Left Hand Side= 4cos2 (4x) - 3
= 3-3 =0 = Right Hand Side (Proved)
Here, Left Hand Side= Right Hanad Side. So, 4cos2 (4x) - 3=0 is true.
Answer:
Step-by-step explanation:
The roots of a function are the x-intercepts. By definition, the y-coordinate of points lying on the x-axis is zero. Therefore, to find the roots of a quadratic function, we set f (x) = 0, and solve the equation, ax2 + bx + c = 0.
Answer:
- Q1. 42 liters
- Q2. Php. 330
Step-by-step explanation:
Question 1
<u>Use ratios to solve:</u>
- 12/100 = x/350
- x = 12*350/100
- x = 42 liters
Question 2
- 1 basket → 5 1/2 kg ⇒ 2 baskets → 2(5 1/2) = 11 kg
- 1 kg → 30 ⇒ 11 kg → 11*30 = 330
Mutya earned Php. 330
1920÷12= 160
Step-by-step explanation:
1920÷12= 160
