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Crazy boy [7]
3 years ago
13

Prove tan3A= (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) ...?

Mathematics
1 answer:
aivan3 [116]3 years ago
5 0
The solution to the problem is as follows:

<span>cos2A - cos4A = -2 sin(6A/2).sin(-2A/2) = +2 sin(3A).sinA
 
and
 
sin4A - sin2A = 2 cos(6A/2).sin(2A/2) = 2 cos(3A).sinA

Hence RHS = (cos(2A)-cos(4A))/ (sin(4A)- Sin(2A)) = sin 3A / cos 3A = tan 3A = LHS
</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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X + 1/7x = 19. What is x?​
Komok [63]

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3 years ago
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When 4 times a number is increased by 40, the answer is the same as when 100 is decreased by the number. find the number?
umka21 [38]
The number is x

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8 0
3 years ago
Find the greatest common factor of the following monomials 34n^5 32n4
Andrew [12]

Answer:

by u meant 32n^4, then the answer is 2n^4

Step-by-step explanation:

first find the gcf of the coefficient

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then for the variables

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their gcf is n^4. you can tell by dividing each term by n^4

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3 years ago
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Segment AB is on the line y − 3 = 2(x 2), and segment CD is on the line y − 3 = negative one half(x 2). Which statement proves t
Natasha2012 [34]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
1. In a game, if you roll a 6 on a 6-sided number cube, you lose a turn.
Mademuasel [1]
A) 1/6
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Explanation:

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B) There are 5 numbers that are not 6 on a 6 sided die, out of 6 numbers.

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D) 1/6(120) = 120/6 = 20
4 0
3 years ago
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