We are asked to prove tan(θ / 2) = sin θ / (1 + cos θ). In this case, tan θ is equal to sin θ / cos θ. we can apply this to the equality. sin θ is equal to square root of (1-cos θ)/2 while cos θ is equal to <span>square root of (1 + cos θ)/2.
Hence, when we replace cos </span><span>θ with </span>square root of (1-cos θ)/2, we can prove already.
Answer:
x=19
Step-by-step explanation:
Answer:
Hope this image helps you. (sorry if it's tiny writing.)
Step-by-step explanation:
Answer: 11
Step-by-step explanation:
Remove the parenthesis
16 - 17
= -11
Answer:
Step-by-step explanation: