Overview: 3 questions will be solved this time.Among them
           ☆3 inequalities

[ 1/3Inequality]
    Assignment:Find the solution set of inequality xcosx >-1/3 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x * cos x > -1 / 3         (1)

---

    From inequality(1)：
         -11.025811 < x < -7.811295 或  -4.782149 < x < -1.314394 或  -0.355576 < x < 1.761209 或  4.640496 < x < 7.896209 或  10.96517 < x < 14.160708

---

    The final solution set is :
         -11.025811 < x < -7.811295 或  -4.782149 < x < -1.314394 或  -0.355576 < x < 1.761209 或  4.640496 < x < 7.896209 或  10.96517 < x < 14.160708
    *Note: Radian.
[ 2/3Inequality]
    Assignment:Find the solution set of inequality x >-2 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x > -2         (1)

---

    From inequality(1)：
         x ＞ -2

---

    The final solution set is :
         x ＞ -2
[ 3/3Inequality]
    Assignment:Find the solution set of inequality x <0 .
    Question type: Inequality
    Solution:
    The inequality can be reduced to 1 inequality：
         x <0         (1)

---

    From inequality(1)：
         x < 0

---

    The final solution set is :
         x < 0

Your problem has not been solved here? Please take a look at the  hot problems ！