1+tanA.tan2A = sec2A

Mathematics

1 answer:

yuradex [85]4 years ago

4 0

Answer:

Step-by-step explanation:

1+tan2A(tanA)=sec2A

Right hand side

sec2A=1cos2A=1cos2A−sin2A

=cos2A+sin2Acos2A−sin2A

=1+tan2A1−tan2A

=1−tan2A+2tan2A1−tan2A

=1−tan2A1−tan2A+2tan2A1−tan2A

=1+2tanA1−tan2A×tanA

=1+tan2A×tanA

=Left hand side

I HOPE THIS WILL HELP YOU

MARK ME AS BRAIN LIST

IF MY ANSWER IS HELP FUL

You might be interested in

Need help Identify three solutions of the graph shown

tester [92]

The solutions are basically the points on the graph that the line passes through. The best way to pick them is to use the whole numbers that are on the corners of the little boxes instead of the middle.

(4, -5)
(3, -3)
(1, 1)
(0, 3)
(-1, 5)
and so on.

6 0

4 years ago

Explain how solving $2x<-8$ is different from solving $-2x<8$ .

miv72 [106K]

Answer:

When we divide by a negative value, the sign for the inequality changes.

Step-by-step explanation:

2x < -8, to solve we would divide by 2 and receive x < -4. However, in solving -2x < 8, we would divide by negative 2, which would result in x > -4. Clearly, these sequences provide opposite answers and that is a rule to inequalities, that when dividing by a negative number, we must flip the less than/greater than sign.

6 0

3 years ago

Maya is packing her backpack for hike in one pocket she puts in 1/4 pound bag of trail mix a water bottle weighing 2 1/5 pounds

xz_007 [3.2K]

This problem is simply asking us to add the weights which are presented as fractions. You can easily get the answer if you input them directly in a calculator. But I think the challenge here is to manually add fractions.

Let's add the two 1/4 lb weights because it is easier for they have a common denominator. Just simply add the numerators.

1/4 + 1/4 = 2/4

Then, add with this the fraction part of 2 1/5.

2/4 + 1/5 = ?
The least common denominator is 4*5 = 20. Then divide 20 with each denominator and multiply to their respective numerator.

2/4 + 1/5 = [(20/4 * 2) + (20/5 *1)]/20 = 14/20

14/20 is simplified to 7/10. Then add the whole number 2. <em>Therefore, the sum of all weights is 2 7/10 pounds.</em>

5 0

3 years ago

Mr adams spent $36.25 on 12.5 pounds of nestle crunch. determine the cost per pound of nestele crunch, showing each step in the

Mkey [24]

What you know:

Mr. Adams spent $36.25 on 12.5 pounds.

All you do to find the cost per each pound is:

36.25/12.5

Your answer:
$2.9 dollars per pound.

8 0

3 years ago

Could someone help me arrange these pairs of points in increasing order of the slopes of the lines joining them. (15, 30) and (2

Zina [86]

Answer:

(e) (27, 2) and (243, 18)

(g) (63, 9) and (84, 12)

(d) (45, 15) and (60, 20)

(a) (15, 30) and (20, 40)

(b) (12, 32) and (18, 48)

(f) (18, 63) and (24, 84)

Step-by-step explanation: