Answer:
8x^2-2x-3/1+4x
Step-by-step explanation:
It doesn't say any of your answers but i just used a calculator and that's what i got
Sorry if its wrong
Answer:
Step-by-step explanation:
<u>Given GP with </u>
<u>Let the common difference is r, then</u>
<u>Solve for r and then a₁:</u>
- 4r = 7 ⇒ r = 7/4
- a₁(7/4)³ = 4
- a₁ = 4*(4/7)³ = 4⁴/7³ = 256/343
If this is supposed to be
Then this can simply be reduced to
by the double angle formula for cosine
The first problem is true because with multiplication it doesn't matter which order it is in.
The second problem is false because you will get a different quotient depending on which numbers are on which side of the equation.
