** CBSE Sample Papers**

# (Model Paper) Andhra Pradesh Board Intermediate 1st Year Model Question Papers (Mathematics A & B)

## Board of Intermediate Education, Andhra Pradesh

## MATHEMATICS PAPER I (A & B)

(Algebra, Vector Algebra and Trigonometry)

(English Version)

**Time : 3 hours
Max. Marks : 100**

## SECTION - A

**I. Very short answer questions 10 x 2 = 20 Marks **(Attempt all
questions) (each question carries ‘Two’ marks)

05. Sketch the graph of sin x in (0, 2π)

06. Find the value of cos^{2}45°-sin^{2}15°

07. Show that cos h (3x) = 4 cos h^{3} X - 3 cos hx.

08. If c^{2}=a^{2}+b^{2}, write the value of 4 s(s-a)
(s-b) (s-c) in terms of a and b.

09. Simplify (cos ө - isin
ө)^{7} **/ **(sin2q - iCos2ө)^{4}

10. Expand cos 4 ө in powers of cos ө .............