We will start off working on the right hand side.
<span>cot x - tan x </span>
<span>= [cos x / sin x] - [sin x / cos x] </span>
<span>= [(cos x)^ 2 - (sin x)^2] / [sin x cos x] </span>
<span>This is where it gets a bit tougher if you do not have your formula list with you. </span>
<span>(cos x)^ 2 - (sin x)^2 = cos(2x) </span>
<span>sin 2x = 2 sin x cos x </span>
<span>Note that by arranging the second formula, we will have sin x cos x = (1/2) sin 2x </span>
<span>Hence, we will get: </span>
<span>[(cos x)^ 2 - (sin x)^2] / [sin x cos x] </span>
<span>= [cos 2x] / (1/2)[sin 2x] </span>
<span>= 2[cos 2x] / [sin 2x] </span>
<span>= 2cot 2x </span>
Answer: 9x16
Step-by-step explanation: The correct option is perfect square of 3x4 is 9x16.
Answer
27 - R = C
if she rented 16 of them then
27 - 16 = C And C = 11
Answer:
f(x)=start fraction 4 over x squared End fraction minus start fraction 2 over x end fraction +1
Answer:
(3+a)
Step-by-step explanation:
3a + a^2
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a
Factor out an a in the numerator
a(3+a)
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a
Cancel like terms
(3+a)
