Question

X tan^120 +4cos^150=9 then x=

Answer 1

take that
विल हेल्प यु

Answer 2

Answer:

2

Step-by-step explanation:

x tan^2 120 degrees +4 cos^2 150 degrees =9

x tan^2(180 degree - 60 degree)+4 cos^2(180 degree - 30 degree)=9

x(- tan^2 60 degree)+4(- cos^2 30 degree)=9

x(-root 3)^2 + 4(-root 3/2)^2=9

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

3x+3=9

3x=9-3

3x=6

x=6/3

x=2

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