Answer:
9
Step-by-step explanation:
DB^2=AD^2+AC^2
15^2=12^2+AC^2
AC^2=225-144
AC^2=81
AC=√81
AC=9
Answer:
The value of the variable in an equation which satisfies the equation is called a Solution to the Equation.
example: So for example we take the equation 2n=10, If n = 1, the number of matchsticks is 2.
hope it helps
Answer:
The answer is multiplying by -2
Step-by-step explanation:
The Binomial
have to be add to the polynomial
to get polynomial that does not contain x.
<h3>What is binomial?</h3>
A mathematical expression consisting of two terms connected by a plus sign or minus sign.
Example: x + 2 is a binomial, where x and 2 are two separate terms.
<h3>What is polynomial?</h3>
A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer
According to question
polynomial
When added to binomial
=
(as
got cancelled )
and this polynomial does not contain x
Hence, Binomial
have to be add to polynomial
to get polynomial that does not contain x.
To know more about Binomial and polynomial here :
brainly.com/question/1698358?\
# SPJ2
Step-by-step explanation:
½ [cos(a − b) − cos(a + b)]
Using sum and difference formulas:
½ [cos a cos b + sin a sin b − (cos a cos b − sin a sin b)]
Distribute the negative:
½ (cos a cos b + sin a sin b − cos a cos b + sin a sin b)
Combine like terms:
½ (2 sin a sin b)
Simplify:
sin a sin b