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ICSE Class IX Question Bank 2023 : Mathematics

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Shri Vile Parle Kelavani Mandal s C.N.M SCHOOL & N.D PAREKH PRE-PRIMARY SCHOOL REVISION WORKSHEET 3(2023-24) CLASS MATHEMATICS IX Topic: Trigonometry, Simple 2D in right angled triangle, Graphical representation of Data, Statistics, , Circles, Pythagoras theorem, Coordinate geometry (I) Solve the following: (1) If Sin = 3 5 , find tan Sin Cos (2) If 5 Cos - 12 sin = 0; evaluate , without using tables. 2 Cos Sin (3) If Cos 3 = 0 and is acute, find the value of Cos 2 . (4) Find , if 00 < 900: 2sin 2 cos2 450 tan 2 450 (5) From the figure given below, find the values of: (i) 5 sin x (ii) 7 tan x (iii) 5 cos x 17 sin y tan x A y 25 17 15 x B D C (6) If cot = 0.75, find sin and tan . 2 (7) Find the value of 2 tan 2 300.tan 450 tan 2 600 STD-IX Mathematics Revision worksheet Page 1 of 3

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