Solve 2 (1/t^2) - 11 (1/t^2) + 15=0

Answer: t=√3/5

Step-by-step explanation:

2 (1/t^2) - 11 (1/t^2) + 5=0

Open the brackets

2/t^2-11/t^2+5=0

2-11+5t^2/t^2=0

Cross multiply

2-11+15t^2=0 (t^2)

2-11+15t^2=0

Collect like terms

2-11=-15t^2

-9=-15t^2

t^2=-9/-15

t^2=3/5

t=√3/5