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Blizzard [7]
2 years ago
11

Helpp!!! prove that: cosecA-cotA= tanA/2

Mathematics
1 answer:
romanna [79]2 years ago
6 0

Answer:

tanA/2.

Step-by-step explanation:

some trigonometric properties:

* tanA = sinA/cosA

* secA = 1/cosA

* cscA = 1/sinA

* cotA = cosA/sinA

1/sinA - cotA

1/sinA - cosA/sinA

1 - cosA / sinA

.... 1 - cosR / sinR = tan(R/2)

1 - cosA / sinA

= tanA/2.

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The angle of elevation to a nearby tree from a point on the ground is measured to be 61 ∘ ∘ . How tall is the tree if the point
marishachu [46]

Answer:

106.44 ft

Step-by-step explanation:

tan = opp/adj

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59*tan61 = opp

opp = 106.438817561014012

Rounded

106.44 ft

5 0
3 years ago
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How to tell if a line is parallel or perpendicular by the equation?
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3 years ago
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I think the answer is c can someone check me
Katen [24]

Answer:

D

Step-by-step explanation:

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6 0
3 years ago
What is the solution to the following system?<br> -4y=8 <br> x+3y-3z=-26<br> 2x-5y+z=19
Viktor [21]
⓵
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⓶
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Simplify the left side in order to isolate the ×, ỿ and z!

× + 3y - 3z = -26
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÷-3 ÷-3

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⓷
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Simplify the left side in order to isolate the ×, ỿ and z!

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3 0
3 years ago
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