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raketka [301]
3 years ago
7

Prove this identify : 2 cos^2 (45°-A ) = 1 +sin 2 A​

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
4 0
I wasn’t sure how to put this into words. I hope this makes sense. <3

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19/4 = 4 3/4 ft which is less than 5ft
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Which set of line segments could create a right triangle?
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Answer:

15,36,39

Step-by-step explanation:

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Don Fenley bought a motorcycle that cost $1,250. He paid $250 down and the remainder in 18 monthly payments of $60 each. How muc
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4 0
3 years ago
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I need help finding the answers someone plz help
Harlamova29_29 [7]

Happy New Year from MrBillDoesMath!

Answer:

Proof by ASA congruence postulate. See below

Discussion:

  Fact 1 :     angle A = angle T             (given)

  Fact 2:    The angles on both sides of point X are equal as vertical angles

                 are equal.

From these facts it follows that angle M = angle H (as all plane triangles have 180 degrees). Also  AM = TH  (given) so

   In the left triangle                          In the right triangle

  (angle M, side AM, angle A)  =      (angle H, side TH, angle T)


Hence the triangles have two congruent angles, and congruent sides included between the angles, so they are congruent by  ASA.


Thank you,

MrB

8 0
3 years ago
Can you help with all math questions?
forsale [732]
No but , they can be pretty easy sometimes
7 0
3 years ago
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