Answer:
- 
Step-by-step explanation:
Given
← cancel sec x on numerator/ denominator
= 
= -
Answer: after you work out the question it will come to you
Step-by-step explanation: No need
Answer:
x = 1/2 or x = -4
Step-by-step explanation:
Since the product equals zero, use the zero product rule.
(2x - 1)(x + 4) = 0
2x - 1 = 0 or x + 4 = 0
2x = 1 or x = -4
x = 1/2 or x = -4
Answer:
Step-by-step explanation:
Recall that the formula for the length of an arc of circumference is given by the formula:
where 
is the radian form of central angle subtended , and R is the radius of the circumference. What is important is to have the angle given in radians for this formula to be valid.
In our case, the angle ( 
) is already in radians, so we can apply the formula directly:
