Answer:
the answer is c
Step-by-step explanation:
Answer:
sinC =
Step-by-step explanation:
We require to find the side DE before finding sinC
Using Pythagoras' identity in the right triangle
DE² + CE² = CD²
DE² + 5² = ( )²
DE² + 25 = 41 ( subtract 25 from both sides )
DE² = 16 ( take the square root of both sides )
DE = = 4 , then
sinC = = = , rationalise the denominator
sinC = × =
I'd love to help but I'm sorry, I can't see the picture. Did you forget it?
Given:
The equation is
To find:
The solution of the given equation.
Solution:
We have,
Subtracting both sides by 20, we get
Multiply both sides by 3.
Therefore, the solution of the given equation is .