Find the Principal values of1 9tan tan

8

Evaluate:

1 5sin 2cot

12

Using Principal values, Find the values of

1 1tan 3 sec 2

Find the value of x

1 1sin 1 2sin2

x x

Find the value of x

1 12tan cos tan 2cosx ecx

If1 1 1tan tan tanx y z , Prove that x y z xyz .

Show that :

1 1 cos .cos2 tan tan tan tan4 2 4 2 sin sin

Show that :

11 3 4 7tan sin2 4 3

Show that :

1 14

2 tan 3 tan2 3

Subject-Mathematics

Compiled By : Er.Md Rizwan Ahmad

Class-XII

Contact No.:- +91-9004164029

Time Allowed : 60 Minutes Max. Marks : 25

General Instructions :

(a) All questions are compulsory.

(b) The question paper consist of 10 questions and 1 printed side. Question numbers 1 to 3 carry 1 mark each,Question numbers 4 to 5 carry 2 marks each,Question numbers 6 to 7 carry 3 marks each, and Question numbers 8 to 10 carry 4 marks each.

(c) Use of calculators in not permitted. You may ask for logarithmic tables, if required.

MINOR TEST-02

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If a1, a2, a3, .............. form an A.P. with common difference d (a > 0, d > 0) prove that

tan1 1+ a1a2d

+ tan1 1+ a2a3d

+ .......... + tan1 1+ an an 1d

+ = tan1

1 n+1n+1 - a1

1+ a aa

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1 Compiled By:- Er. Md.Rizwan Ahmad Contact:-+91-9004164029

..Best of luck..

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