Question

If x tan2 120+ 4 cos2 150=9 then x =

Answer 1

Answer:

x=2

Step-by-step explanation:

before doing sum things to ponder

tan(90+θ ) =-cotθ

cos(90+θ)=-Sinθ

so

xtan²(90+30)+4cos²(90+60)=9

x(-cot²30)+4(-Sin²60)=9

x(3)+4(3/4)=9

3x=9-3

x=6/3

x=2

Answer 2

Answer:

x= 2 is your answer.....