New ! Maths MCQ Practise Tests



11th Standard English Medium Maths Subject Trigonometry Creative 5 Mark Questions with Solution Part - I

11th Standard

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Maths

Time : 01:00:00 Hrs
Total Marks : 25

    5 Marks

    5 x 5 = 25
  1. If 3 tan A tan B = 1, prove that 2 cos(A+B) = cos(A-B) 

  2. If tan \(\frac { \theta }{ 2 } =\sqrt { \frac { a-b }{ a+b } } tan\frac { \emptyset }{ 2 } ,prove\quad that\quad cos\theta =\frac { acos\emptyset +b }{ a+bcos\emptyset } .\)

  3. A + B + C =\(\pi\), prove that sin 2A - sin 2B + sin 2C = 4 cos A sin B cos C

  4. Solve: sin2θ - 2cos θ +\(\frac{1}{4}=0\)

  5. Prove that cos2x + cos2 \(\\ \left( x+\frac { \pi }{ 3 } \right) +{ cos }^{ 2 }\left( x-\frac { \pi }{ 3 } \right) =\frac { 3 }{ 2 } \)

*****************************************

Reviews & Comments about 11th Standard English Medium Maths Subject Trigonometry Creative 5 Mark Questions with Solution Part - I updated Creative Questions

Write your Comment