Question

tan48tan16tan42tan74​

Answer 1

1 is the answer so its the answer

Answer 2

Q. tan48tan16tan42tan74

we know that ,

tan48=tan(90-42)=cot42

tan16=tan(90-74)=cot74

so that

cot42tan42cot74tan74

(1/tan42)tan42(1/tan74)tan74=1

so answer is 1

I hope you will understand it clearly