Answer:
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
equate to zero
so
substitute in the formula
therefore
StartFraction 7 minus StartRoot 65 EndRoot Over 2 EndFraction comma StartFraction 7 + StartRoot 65 EndRoot Over 2 EndFraction
Answer:
x = 1
Step-by-step explanation:
x 1
-------- = ----
x + 1 2
Begin the solution by multiplying both sides by the LCD, which is 2(x + 1):
2x = 2(x + 1)/2, or
2x = x + 1, or
x = 1
1
Check: is -------- = 1/2?
1 + 1
YES
Answer:
x=1, -3
Step-by-step explanation:
Answer:
x(θ) = 5 tan θ
Step-by-step explanation:
Given that:
we are to state the trigonometric substitution to be used to find the indefinite integral.
Suppose u is the variable and a is the constant
u = x
a = 5
So; (a² + x²)ⁿ
which is a trigonometric substitution for x = a tanθ
Then,
x(θ) = 5 tan θ
Looking at the picture below (where the blue line is the height and the red line is equal to 43), we see that we can use the trigonometric ratio
tan.
tan38=x/43
which simplifies to
43*tan38=x
which gets us that
x=33.6 (approximately)
:)
