4 years ago

Simplify the expression sin(pi+x) + sin(pi - x) ...?

1 answer:

soldier1979 [14.2K]4 years ago

7 0

The solution to the problem is as follows:

sin(π+x) = -sin(x) and sin(π-x)= sin(x)

sin(π+x) + sin(π-x) = -sin(x) + sin(x)

<span>= 0
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

You might be interested in

P to the 3rd power and q to the 5th power over p squared and q to the 4th power is what??

solmaris [256]

$p^{3} \frac{q^{5}}{p^{2}}q^{4} \\ \\ \frac{p^{3}}{p^{2}}*q^{5}*q^{4} \\ \\ p^{3-2}*q^{5+4} \\ \\ \boxed{pq^{9}}$

7 0

4 years ago

At Prairie Middle School, 120 of the 450 students ride their bikes to school each day. Which fraction represents the ratio of st

stellarik [79]

I think it might be d.)

6 0

3 years ago

The sum of Cathy's and Tony's ages is 65. Eight years ago, Cathy's age was 2/5 of Tony's age. How old are they now?

Viktor [21]

Let
x------> Cathy's<span> ages
</span>y------> Tony's ages

we know that
x+y=65-----> x=65-y-----> equation 1
y-8=(2/5)*(x-8)-----> equation 2

substitute equation 1 in equation 2
y-8=(2/5)*(65-y-8)---> y-8=22.8-0.4y----> y+0.4y=22.8+8
1.4y=30.8-----> y=22
x=65-y-----> x=65-22----> x=43

the answer is
Cathy's ages is 43 years
Tony's ages is 22 years

7 0

3 years ago

What is the distance of segment BF (look closely...it isn't drawn)?

Vlad [161]

The distance of BF is 7.07

4 0

3 years ago

Original price of a pen $1.99 tax:6%

egoroff_w [7]

Answer:

The final price would be 2.11$

5 0

3 years ago