I^2 is negative 1, but I see you have a negative sign there. So it is -(-1), which is 1.
Y = 4x/3+19/3 move all terms that dont contain to y to the right then solve
18.75/75=(75/75) -
p =(75-18.5)/75
p=56.5/75
p=0.75(3recurring)
(tanθ + cotθ)² = sec²θ + csc²θ
<u>Expand left side</u>: tan²θ + 2tanθcotθ + cot²θ
<u>Evaluate middle term</u>: 2tanθcotθ =
= 2
⇒ tan²θ + 2+ cot²θ
= tan²θ + 1 + 1 + cot²θ
<u>Apply trig identity:</u> tan²θ + 1 = sec²θ
⇒ sec²θ + 1 + cot²θ
<u>Apply trig identity:</u> 1 + cot²θ = csc²θ
⇒ sec²θ + csc²θ
Left side equals Right side so equation is verified
6t^-7 * 3t^5 = 1/6t^7 * 3t^5