Answer:
f(x) = 3x
Step-by-step explanation:
when adding x (the same variable) to eachother when there is nothing in front, you always assume the coefficient is 1. since there are 3 x's, (1)x+(1)x+(1)x=3x. hope this helps:)
Answer:
see explanation
Step-by-step explanation:
using the trigonometric identities
• sin2x = 2sinxcosx
• cos2x = 2cos²x - 1
• sin²x + cos²x = 1
sinx = ± 
= ±
= ± 
= ±
= ± 
since sinΘ > 0 then sinΘ =
= 
sin2Θ = 2 ×
× -
= - 
cos2Θ = 2 × (-
)² - 1
= 2 ×
- 1
=
- 1 =
= 
To solve this problem, we are going to use trial and error.
If the 2 numbers are 3 and 4 then 3 and 4 is 12 and 3 + 4 = 7 which cannot be divided equally, so this is not the answer.
3 and 5 = 15 but this is not divisible by 2.
6 and 3 = 18 and 6 + 3 = 9 which is 1/2 of 18
therefore, one set is 6 and 3.