Question

If sin theta =√3/2 then what is the value of 2 cot² theta -1​

Answer 1

Answer:

sin theta =√3/2

sin 60°=√3/2

theta = 60°

2 cot² theta -1 = 2 cot² 60°-1

= 2 × ( 1/√3)² -1

= 2/3 -1

= (2 -3 )/3= -1/3

Answer 2

Answer:

sin theta equals to root 3 by 2 then cos theta equals to 2 by root 3

then tan equals to 3 by 4

then cot equals to 4 by 3

2 cos squared theta equals to 32 by 9

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