Question

prove that question​

Answer 1

Step-by-step explanation:

Just plug in the values,

cot60 = 1/√3

sin45 =1/√2

sin 30= 1/2

cos90= 0

Remember they are all squared in the given expression

So,.

1/3 + 1/2 + 1/4 = 4+6+3 /12. = 13/12