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GOKUL ACADEMY OF SCIENCE
                              15, Near Gajanan High School, New Subhedar Lay-out, Nagpur-24
                                              Ph.No.0712-2743707 & 6466067

Date :05-01-2012                     Gokul Retrospection sheet 03             Std :XII - State
                                                ( G.R.S. -03)

Biology
Q.1 Selective reabsorption:                                                               (M-02)

Q.2 Write a note on Kidney stone.                                                         (M-02)

Q.3 What are renal calculi?                                                               (M-04)

Chemistry
Q.1   How phenol is prepared from Aniline

Q.2   What is the action of the following on phenol.

       i) liquid Bromine

      ii) Bromine water

Physics
Q.1   Derive the expression for variation of g with altitude. ( Two - time)


Mathematics
Q.1   Prove that: tan3θ – tan2θ– tan θ= tan3 θ· tan2θ ·tanθ

Q.2   Prove that: tan100 + tan 350 + tan100 + tan350 = 1

Q.3   Prove that: tan 500 = tan400 + 2 tan100

Q.4   Without using the trigonometric table, Find
        i) tan 750
       ii) cos 150
      iii) sin1050



                                                         Go Cool For Exam
                                                         .

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G.r.s. 03 05-01-12

  • 1. GOKUL ACADEMY OF SCIENCE 15, Near Gajanan High School, New Subhedar Lay-out, Nagpur-24 Ph.No.0712-2743707 & 6466067 Date :05-01-2012 Gokul Retrospection sheet 03 Std :XII - State ( G.R.S. -03) Biology Q.1 Selective reabsorption: (M-02) Q.2 Write a note on Kidney stone. (M-02) Q.3 What are renal calculi? (M-04) Chemistry Q.1 How phenol is prepared from Aniline Q.2 What is the action of the following on phenol. i) liquid Bromine ii) Bromine water Physics Q.1 Derive the expression for variation of g with altitude. ( Two - time) Mathematics Q.1 Prove that: tan3θ – tan2θ– tan θ= tan3 θ· tan2θ ·tanθ Q.2 Prove that: tan100 + tan 350 + tan100 + tan350 = 1 Q.3 Prove that: tan 500 = tan400 + 2 tan100 Q.4 Without using the trigonometric table, Find i) tan 750 ii) cos 150 iii) sin1050 Go Cool For Exam .