7/25/2019 An Hour for 25 E-2
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SSLC EXAM-TARGET 40 My Revision -AN HOUR for 25
Yakub S., GHS Nada,Belthangady Taluk, D.K. Phone;9008983286
Email:[email protected] 1
Time: 1 Hour Mathematics marks : 25
I.Choose the best alternative from the following options 1 x
5=5
1. The expansion of 3! is -----
a) 3 x1 b) 2 x1 c) 3x3 d) 3x2x1
2. If Standard Deviation is 4.2 and C.V.is 6 ,the Mean =
a) 70 b) 25.2 c) 0.70 d) 2.52
3. 1+ cot2 = ----------------
a) tan2 b) sin2 c) cos2 d) cosec2 4. The slope of a line joining
the points (3,-2) and (4,5) ----
a) 7 b)1
7 c) 3 d)
1
3
5. The formula to find the Harmonic Mean.
a)+
2 b)
2
+ c)
+
2 d)
II.Answer the following. 1 x 3 =3
6. In the figure, the shaded area represents?
7. Staten basis proportionality theorem.
8. What is the maximum number of tangents to be drawn to a
circle from an
external point?
III. Answer the following 2 x 5=10
9. Find the product of 23
and 34
10. If ta =7
24 , then find the remaining trigonometric ratios.
11. Construct a tangent at any point on a circle of radius
4cm.
12. Solve by using formula: x2 -4x - 8 =013. Veryfy Eulers
formula for the following figure:
IV.Answer the following. 3 x 1=3
14. Prove that the tangents drawn from an external point to a
circle
a) Are equalb) Substend equal angles at the centre.c) Are
equally inclined to the line joining the centre and the external
point.
V.Answer the following 4 x 1 = 415. Draw the graph and solve the
equation = x2 x 2 .
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