Solve for x 41 – 3 = 7 Enter your answer in the box. X =

Mathematics

1 answer:

AnnyKZ [126]2 years ago

7 0

Answer: X= 2.5

Step-by-step explanation:

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Prove: cot(x) sec^4(x) = cot(x) +2tan(x) + tan^3(x)

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$\bf cot(\theta)=\cfrac{cos(\theta)}{sin(\theta)}
\qquad\qquad 
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tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)}
\qquad \qquad cot(\theta)=\cfrac{cos(\theta)}{sin(\theta)}
\\\\
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cot(x)sec^4(x)=cot(x)+2tan(x)+tan^3(x)\\\\
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$\bf \textit{so, let's do the left-hand-side}\\\\
cot(x)sec^2(x)sec^2(x)\implies cot(x)[1+tan^2(x)][1+tan^2(x)]
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\\\\\\
cot(x)+2\cdot \cfrac{sin(x)}{cos(x)}+\cfrac{sin^3(x)}{cos^3(x)}\implies \boxed{cot(x)+2tan(x)+tan^3(x)}$

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What is the length of the unknown leg in the right triangle? A right triangle has a side with length 8 feet, hypotenuse with len

harina [27]

Answer: the answer is A:3 I just took the test

Step-by-step explanation:

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madam [21]

Answer:

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