Question

If x = 7 + 4√ then x + 1/x



.

(a) √ (b) 14 (c)49 (d) 48​

Answer 1

Answer:

Step-by-step explanation:

Let 3∠A=4∠B=6∠C=x

∠A=  

3

x

​  

,∠B=  

4

x

​  

,∠C=  

6

x

​  

 

∠A+∠B+∠C=180  

∘

 

3

x

​  

+  

4

x

​  

+  

6

x

​  

=180  

∘

 

x=240  

∘

 

Therefore,

∠A=80  

∘

,∠B=60  

∘

∠C=40  

∘