Math, asked by srilakshmi21, 1 month ago

in triangle abc if a=2,b=3,c=4 then cos A is

Answers

Answered by Aditya123098

0

Answer:

cos A = don't konw

SORRY...........

Answered by anamica342013

1

Answer:

Correct option is

A

8

7

Given : a=2,b=3,c=4

cosA=

2bc

b

2

+c

2

−a

2

=

2×12

9+16−4

=

24

21

cosA=

8

7

Step-by-step explanation:

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