Question

if secQ - tanQ = x, then tanQ is​

Answer 1

Step-by-step explanation:

secQ-tanQ=x

sec²Q - tan²Q =x

(secQ-tanQ)(secQ+tanQ)=1

x(secQ+tanQ)=1

secQ+tanQ=1/x

secQ-tanQ =x

on subtracting both eq.

2tanQ= (1/x)-x

2tanQ= (1-x²)/x

tanQ= (1-x²)/2x

#666