Question

if sin A =√3/2 find the value of cot∧2A-1

Answer 1

Answer:

i hope my answer is write

Step-by-step explanation:

if sin A=root3/2

2cot A-1=?

sin 60⁰=root3/2=sin A

therrfore,A=60⁰

i.e,2cot²60⁰-1

2×(1/root3)²-1

2×1/3-1

2/3-1×3/1×3

=-1/3