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abruzzese [7]
3 years ago
11

Sec²A-cosec²A=(tanA+cotA)(tanA-cotA)​

Mathematics
1 answer:
Lady_Fox [76]3 years ago
8 0

Answer:

Step-by-step explanation:

Sec²A-cosec²A=(tanA+cotA)(tanA-cotA)

Tan^2A+1-cot^2A-1=(tan^2A-cot^2A)

tan^2A-cot^2A=tan^2A-cot^2A

L.H.S=R.H.S

Hence proved.

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Are the fractions 3/9, 3/10, 3/11, and 3/12 in order from least to greatest
Cerrena [4.2K]

Answer:

The fractions \frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12} are not in order from least to greatest.

Step-by-step explanation:

Given order of fractions from least to greatest:

\frac{3}{9},\frac{3}{10},\frac{3}{11},\frac{3}{12}

To check if the fractions are in correct order.

Solution:

The fractions given have same numerators but different denominators.

For fractions the higher the denominator the lower is the value of that fraction.

Thus, in the given list the least value fraction will be the fraction with the greatest denominator which is \frac{3}{12} and the greatest value fraction will be the fraction with the least denominator which is \frac{3}{9}

So, the order of the fractions from least to greatest is not correct. Instead the order is from greatest to least.

The correct order from least to greatest should be:

\frac{3}{12},\frac{3}{11},\frac{3}{10},\frac{3}{9}.

4 0
4 years ago
The length of a rectangle is 7 more than twice the width x . The area is . 372
Bad White [126]

Answer:

x (7+2x) = 372,

where 372 is the are of this rectangle, and x is its width.

Step-by-step explanation:

The width of this rectangle is x. Twice that width will be equal to 2x.

The length of this rectangle is seven more than twice the width of this rectangle, or seven more than 2x. The length of this rectangle will thus equal to 7 + 2x.

The area of a rectangle is equal to the product of its width and its length. The width of this rectangle times its length will be equal to x(7+2x).

For this rectangle, this area is equal to 372. In other words,

x(7 + 2x) = 372.

This equation about x represents the relationship between the width, length, and the area of this rectangle.

8 0
3 years ago
What's 14 ten thousands + 12 thousand
statuscvo [17]
The answer to this question would be 152,000

In this question, you are given multiple number names and asked to add it. To answer this question, it will be easier to split the sentences into multiple parts like this:
<span>1. "14 ten thousands" mean 14 * 10,000 =140,000
</span><span>2. "12 thousands" mean 12 * 1,000= 12,000
Then, if you add them up it will be: 140,000+ 12,000= 152,000</span>
3 0
3 years ago
HELP PLZ IF YOU PUT ANYTHING ELSE THEN MATH REPORTED
Romashka [77]

Answer:

40 students would choose rap. Hope this helps! BTW nice job scaring people off

It is 40 because the total in the graph is 50 so you have to multiply everything by 4

7 0
3 years ago
Read 2 more answers
Round 834.76 to nearest one
pishuonlain [190]
834.76 to the nearest one is 835.00
4 0
3 years ago
Read 2 more answers
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