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Daniel [21]
3 years ago
11

Prove that 1+cot²A=cosec²A​

Mathematics
1 answer:
o-na [289]3 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

Consider the left side

1 + cot²A

= 1 + \frac{cos^2A}{sin^2A}

= \frac{sin^2A+cos^2A}{sin^2A}

= \frac{1}{sin^2A}

= cosec²A

= right side, thus proven

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The voltage in a circuit is the product of two factors, the resistance and the current. If the voltage is 6ir + 15i + 8r+20, fin
zhuklara [117]

Answer:

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Step-by-step explanation:

The factors of the given expression are ...

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Which factor is current and which is resistance is not clear. Usually, resistance is referred to using the variable r, so we suppose the expressions are supposed to be ...

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6 0
3 years ago
Angie bought 3 1/2 pounds of apples to make a pie. There are 16 ounces in one pound. How many ounces of apples did she buy?
pantera1 [17]

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Step-by-step explanation:

8 0
3 years ago
V=3.14(r)^2h solve for r
sveticcg [70]
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6 0
3 years ago
Read 2 more answers
(x -1) = 26 = -4x <br> A. -7 5/7<br> B. 8<br> C. -7<br> D. -5
Volgvan
Based on the answer choices, we suspect you intend
.. (x -1) +26 = -4x

This simplifies to
.. x +25 = -4x
.. 25 = -5x . . . . . subtract x
.. -5 = x . . . . . . . divide by the coefficient of x

Selection D appears to be appropriate for the question we think you asked.
4 0
3 years ago
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