Answer:
7x + 2 is your answer.
Step-by-step explanation:
<em>2(5x + 1) – 3x</em>
<em>10x + 2 - 3x</em>
<em>7x + 2 </em>
7x + 2 is your answer.
Answer:
14/3 28/6 42/3
Step-by-step explanation:
Answer:
15
Step-by-step explanation:
15 is the lowest multiple that 3 and 5 have in common.
Answer:
we should know that :
sin ( a + b ) = sin a * cos b + sin b cos a
For the given equation :
sin (π + q) = sin π * cos q + sin q * cos π
sin π = zero and cos π = -1
∴ sin (π + q) = 0 * cos q + sin q * (-1) = - sin q
<u>Another solution:</u>
The angle (π + q) lies in the third quarter ⇒ (1)
(π + q) and (-q) are supplementary angles ⇒ (2)
From (1) and (2)
sin(π + q) = -sin q
