Question

if sec Q + tan Q =5 then the value of tanQ+1/ tanQ -1 is
a) 7/17 b)17/7 c) 3/12 d) 4/17​

Answer 1

Answer:

SecQ+tanQ=5

SecQ-tanQ=1/5

2secQ=5+1/5=26/5

SecQ=13/5

2TanQ=5-1/5=24/5

TanQ=12/5

(TanQ+1) /(tanQ-1)=(12/5+1)/12/5-1

=17/7