Question

Pls Help

Answer 1

http://prntscr.com/9sj6fv

Answer 2

@phi

Answer 3

@imqwerty

Answer 4

Do u know sine rule?

Answer 5

yes

Answer 6

thats what u have to use here..

Answer 7

cosine rule would be better here =]

Answer 8

thats what i have to use, but i get 7 which is wrong

Answer 9

okay so you are getting 7 for the 1st one?

Answer 10

u can use both but @imqwerty is right cosine is better..

Answer 11

yup and yup

Answer 12

7 is correct i guess

Answer 13

nop

Answer 14

root 7

Answer 15

cosine rule is this->
\(\large cosA=\Large\frac{b^2+c^2-a^2}{2bc}\)

from here you will get the value of \(a^2\) which is 7
you have to take the square root to get \(a\)

Answer 16

aint we finding c

Answer 17

shouldnt it be cosC

Answer 18

yea u can name it whatever u want ;P
i just gave the general formula

Answer 19

all u did was correct @Adi3 except that u forgot to take sq. root..

Answer 20

alright

Answer 21

ohh yeah i forgot square root. sh*t

Answer 22

thnks everyone

Answer 23

np (B

Answer 24

can i ask you more if i have doubt

Answer 25

yea