Use a graphing utility to approximate (to three decimal places) the solutions of the equation in the

Question:

Use a graphing utility to approximate (to three decimal places) the solutions of the equation in the given interval.
1. 3 tan2 x + 5 tan x − 4 = 0, [- π / 2, π / 2]
2. cos2 x − 2 cos x − 1 = 0, [0, π]
3. 4 cos2 x − 2 sin x + 1 = 0, [- π / 2, π / 2]
4. 2 sec2 x + tan x − 6 = 0, [- π / 2, π / 2]
Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For  book-img-for-question
Question Posted: