Step-by-step explanation:
L.H.S=(1-cosB)(1+cosB)
=(1-cos^2B). {using (a+b) (a-b)=(a^2-b^2)in second step}
=sin^2B
=1/cosec^2B
Therefore,L.H.S=R.H.S proved
Answer:
81
Step-by-step explanation:
27 total of pupils.
girls 1×27=27
boys 2×27=54
total 54+27=81
Answer:
<h2>my answer is 4x+6/2+2 </h2><h2>is 10.3221</h2>
This is very simple, all you have to do is subtract 18 and 6 and that would be 12, and now we have 12 as a POSSIBLE answer, lets check our work to be 100% correct so now try to add 12 and 6 and we get 18, so yay it made the equation true and since its true its right so that's the answer.
Answer: c = 12 so 18 = 12 + 6 is true.
Answer:
Step-by-step explanation:
(-4, -1) is what you asked to be plotted.
The first number is what number you go to on the x axis (horizontal).
The second number is what number you go to on the y axis (vertical).
I've attached a picture to help demonstrate. :)
The way I remember which comes first is to keep it alphabetical. X comes first, so go on the x axis first, then y
