Question

(2 tan 30°)÷(1-tan^2 30°)

Answer 1

Hey MATE!!!

We know that tan30° = 1/√3

Hence the equation becomes :

(2/√3) ÷ 1-1/√3

=> (2/√3) ÷ (√3 -1 )/√3

=> 2√3/√3(√3-1)

=> 2/(√3-1) Answer

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Answer 2

Answer:

Step-by-step explanation:x*5/2+2/3=-7/12,

5x/2+2/3=-7/2,

denominators L.C.M=6

5x/2*6+2/3*6 total /6,

15x+4= -7/2,

30x+8=-7,

30x=-15,

x=-15/30,

x=-1/2.

hence the rational number should be =-1/2