Answer:
1 and 1/3
Step-by-step explanation:
1/3x4=1 and 1/3 cuz 1/3+1/3=2/3 and 2/3+2/3=4/3 and 4/3=1 and 1/3
Answer:
7/√2 cm
Step-by-step explanation:
Area of circle = 77 cm^2
=> π(r)^2 = 77
=> (22/7) x (r)^2 = 77
=> (r)^2 = (77 x 7) / 22
=> (r)^2 = 49/2
=> (r) = 7/√2 cm
Answer:
i don't know this one!
Step-by-step explanation:
sorry!
Answer:
<h3>
x₁ = -1, x₂ = 3</h3>
Step-by-step explanation:
Answer:
-1.
Step-by-step explanation:
(tanx- secx) (tanx+ secx).
= tan^2 x + tanx sec x- tanx sec x - sec^2x
= tan^2 x - sec^2 x.
But sec^2 x = 1 + tan^2 x
so tan^2 x - sec^2 x = -1
