1.

Evaluate tan 19, tan 37, tan 71 tan 53​

Answer»

Step-by-step EXPLANATION:

TAN19 tan71 tan37tan53

TAN(90-71) tan(90-53) tan71 tan53

cot71 tan71 cot53 tan53

=1 (as cot=1/tan)



Discussion

No Comment Found

Related InterviewSolutions