Question

1-tan^2 60/1+tan^2 60= cos a then find a

Answer 1

..... 1-(√3)^2/1+(√3)^2 =cos a =1-3/1+3=cos a

=-1/2= cos a

a= 120° or 240°

Answer 2

Step-by-step explanation:

this is the answer to your Q ☝

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