Match the equations with their solutions over the interval [0, 2π].

Step-by-step explanation:

A). cos(x)tan(x) =

cos(x) =

sin(x) =

Since sine is positive in 1st and 2nd quadrant.

Therefore, x =

B). sec(x)cot(x) + 2 = 0

Since sine is negative in 3rd and 4th quadrant.

Therefore, x = and

C). sin(x)cot(x) + = 0

cosx = -

Since cosine is negative in 2nd and 3rd quadrant.

Therefore, x = and

D). csc(x)tan(x) - 2 = 0

cos(x) =

Since x is positive in 1st and 4th quadrant.

x = and

341

step-by-step explanation:

all you have to do is 9x31 (which equals 279) and then 20x31 (which equals 620). then you have to subtract. 620-279=341.