Answer:
-1
Step-by-step explanation:
-(-4)-5=
4-5=
-1
Given:
To find:
The exact value of cos 15°.
Solution:
Using half-angle identity:
Using the trigonometric identity:
Let us first solve the fraction in the numerator.
Using fraction rule:
Apply radical rule:
Using :
2x^2+7x-4
you need distribute all the numbers in parenthesis.
Answer: x=(z-a)/b
Step-by-step explanation:
First subtract a from both sides to begin isolating x on its side of the equation. This gives you bx=z-a. Next, divide b from both sides to finish isolating x. This gives you x=(z-a)/b
Answer:
1295 in^2
Step-by-step explanation:
A rectangle of length 37 in and width 35 in has area (37 in)(35 in) = 1295 in^2