Step-by-step explanation:
√((1 + sin x) / (1 − sin x)) + √((1 − sin x) / (1 + sin x))
Square and take the square root.
√[√((1 + sin x) / (1 − sin x)) + √((1 − sin x) / (1 + sin x))]²
√[(1 + sin x) / (1 − sin x) + 2 + (1 − sin x) / (1 + sin x)]
Add the fractions using least common denominator.
√[((1 + sin x)² + (1 − sin x)²) / (1 − sin²x) + 2]
√[(1 + 2 sin x + sin²x + 1 − 2 sin x + sin²x) / (1 − sin²x) + 2]
√[(2 + 2 sin²x) / (1 − sin²x) + 2]
Use Pythagorean identity:
√[(2 + 2 sin²x) / (cos²x) + 2]
√[2 sec²x + 2 tan²x + 2]
√[2 sec²x + 2 (tan²x + 1)]
Use Pythagorean identity:
√[2 sec²x + 2 sec²x]
√[4 sec²x]
±2 sec x
If x is in the second quadrant, then sec x < 0.
-2 sec x
Answer: 3
Step-by-step explanation: 2+1=3
Victoria’s printer can print 8.804 in one minute if Victoria’s prints page for 0.903 minutes,
We apply unitary method
In one minute the number of pages printed is 8.804. we need to find the number of pages for 0.903 minutes
1 minute = 8.804 pages
0.903 minutes = ? pages
We multiply 8.804 by 0.903
8.804 * 0.903 = 7.95
Number of pages printed = 7.95 pages
Answer:
A
Step-by-step explanation:
Slope m = 2
The point is (0,3)
x1 = 0 and y1 = 3
And y - y1 = m(x - x1)
y - 3 = 2(x - 0)
y - 3 = 2x
y = 2x + 3 this is the equation
I think this is how you do it...hope it helps
