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slamgirl [31]
3 years ago
15

Prove the following identi v 1-cos2A/sin2A=tanA

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
8 0

Answer:

 1-cos2A/sin2A

=(1-cos^2 A+sin^2 A)/(2sinAcosA)

=(sin^2 A+sin^2A)/2sinAcosA

=2sin^2 A/2sinAcos^2 A

=sinA/cosA

=tanA

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Nookie1986 [14]
The answer is A because 3 divided by 3 is one, and 51 divided by three is 17.
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2 years ago
The area of a rectangular park is same as area of a square park. If the length
Leona [35]

Answer:

<h2> 8m</h2>

Step-by-step explanation:

Step one:

given data

length of rectangle= 24.5m

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Step two:

we know that the area of a rectangle is

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Ar=24.5*x-----------1

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As=196m^2

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5 0
3 years ago
Can someone pllllzzz help​
pychu [463]
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4 0
3 years ago
The equation x2+y2=14 represents a
Ann [662]

Answer:

r = √14

Step-by-step explanation:

Is this what you meant?  If so heres' the answer

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5 0
2 years ago
Read 2 more answers
The length of a rectangle is 4 cm longer than its width. If the perimeter of the rectangle is 44 cm, find its area.​
adell [148]
Length: w+4
Width:w
Perimeter:44
Area: L times w
P=44
44=2(w)+2(w+4)
44=2w+2w+8
44=4w+8
36=4w
w=9
L=w+4
L=9+4
L=13
Area should equal 117 cm squared
5 0
3 years ago
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