Question

cot9×cot27×1×tan27×tan9 =1 how???

Answer 1

cot9*tan9=1
cot27*tan27=1
so, 1*1*1= 1.
ok.

Answer 2

HEY THERE!!!


Question;-

cot9×cot27×1×tan27×tan9 =1

Method of Solution;-

Note: tan ∅= 1/Cot∅

•°• Cot ∅= 1/tan∅


Now, Considering on Question!!

cot9×cot27×1×tan27×tan9

Cot 9 × tan 9 × Cot 27 × tan 27 × 1

Cot 9×1/cot 9 × Cot 27 × 1/Cot 27 × 1

1× 1 × 1 × 1

=> 1

Hence, LHS = RHS