Question

Plss answer fast dear frnd in up board​

Answer 1

please can u write the answer so i can give the answer

Answer 2

Given, tan 48 tan 23 tan 42 tan 67

=> tan 48 tan 42 tan 23 tan 67

=> tan 48 tan(90 - 48) tan 23 tan(90 - 23)

=> tan 48 * cot 48 * tan 23 * cot 23

=> tan 48 * (1/tan 48) * tan 23 * (1/tan 23)

=> 1

#BeBrainly.  Hope it helps