Math, asked by rohinikumari5y, 4 months ago

In triangle ABC if a:b:c=3:5:7, then cosA+cosB=

Answers

Answered by aditipatel0609

0

Answer:

3:5:7

Step-by-step explanation:

180=3:5:7

3x+5x+7x=180

15x=180

180/15

12

3x=36

5x=60

7x=84

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