2. Questions Bank
  3. 10th Class
  4. Mathematics
  5. Introduction to Trigonometry

10th Class Mathematics Introduction to Trigonometry Question Bank Introduction to Trigonometery

  • question_answer
    Find the value of\[\frac{2}{3}({{\cos }^{4}}{{30}^{o}}-{{\sin }^{4}}{{45}^{o}})\]\[-3({{\sin }^{2}}{{60}^{o}}-{{\sec }^{2}}{{45}^{o}})+\frac{1}{4}{{\cot }^{2}}{{30}^{o}}\]

    A)  \[\frac{15}{4}\]                               

    B)  \[\frac{3}{4}\]

    C)  \[2\frac{65}{4}\]             

    D)         \[4\frac{17}{24}\]

    Correct Answer: D

    Solution :

    Not Available


You need to login to perform this action.
You will be redirected in 3 sec spinner