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2 tan ^ 2 45 ^@ + cos ^ 2 30 ^@ - s...

` 2 tan ^ 2 45 ^@ + cos ^ 2 30 ^@ - sin ^ 2 60 ^@ = ? `

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sin 60 ^@ cos 30 ^@ + sin 30^ @ cos 60^@ = ?

( 5 cos ^ 2 60^ @ + 4 sec ^ 2 30 ^@ -tan ^ 2 45 ^@ ) /( sin ^ 2 30^@ + cos ^ 2 30 ^@ )

(2 tan 30 ^@) /( 1 - tan ^ 2 30 ^@ )

(2 tan 30 ^@ ) /( 1 + tan ^ 2 30 ^@ )

( 1 - tan ^ 2 45^@ ) /( 1 + tan ^2 45 ^@ ) = ?

(sin 30 ^@ + tan 45 ^@- cosec 60 ^@ ) /( sec 30 ^@ + cos 60 ^@ + cot 45 ^@ )

If 3 cot A = 4 , check whether (1 - tan ^ 2 A ) /( 1 + tan ^ 2 A ) = cos ^ 2 A - sin ^ 2 A or not

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The length of the chord joining the points (4 cos theta , 4 sin theta ) and (4 cos ( theta+ 60^@ ), 4 sin ( theta+ 60^@ )) of the circle x^2+y^2=16 is :

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OSWAAL PUBLICATION-KARNATAKA SECONDARY EDUCATION EXAMINATION BOARD (MODEL QUESTION PAPER)-QUESTION
  1. Find a quadratic polynominal each with the given numbers as the sum an...

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  2. Solve the equation 3x^(2) - 5x+ 2 = 0 by using the formula

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  3. 2 tan ^ 2 45 ^@ + cos ^ 2 30 ^@ - sin ^ 2 60 ^@ = ?

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  4. The angle of elevation of the top of a tower from a point on the groud...

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  5. As observed from the top of a 100 m high light house from the sea leve...

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  6. A die is thrown once. Find the probability of getting a number lyin...

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  8. Prove that the tangent at any point of a circle is perpendicular to th...

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  9. Prove that "the lengths of tangents drawn from an external points to a...

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  10. Construct a triangle of sides 4 cm, 5 cm and 6 cm and then a triangle ...

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  11. A two digit number is four times the sum of the digits. It is also equ...

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  12. The numerator of a fraction is 3 less than its denominator. If 2 is ad...

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  13. If 4 tan theta = 3, Evaluate [ (4 sin theta - cos theta +1)/(4 sin the...

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  14. If tan 2A = cot (A- 18^@ ) where 2A is an acute angle...

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  15. Calculate the median for the following data : {:("Class interval", "...

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  16. Calculate the mode for the following frequency distribution table : ...

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  19. In an arithmetic progression of 50 terms, the sum of first ten terms ...

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