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tan A . Sin A+ cos A=secA...

`tan A . Sin A+ cos A=secA`

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Show that (tan A .sin A) + cos A = sec A .

Prove that : (a) (sintheta+costheta)^(2)=1+2sin thetacostheta (b)Sin A cos A tan A+cos A sin A cot A=1

Prove that (cos A)/(1-tan A) + (sin A)/(1-cot A) = cos + sin A .

If 3 tan A =4 ,then find sin A and cos A

( cosec A - sin A ) (sec A - cos A ) = ( 1 ) /( tan A + cot A )

If A + B = 90^(@) , prove that sqrt((tan A tan B + tan A cot B)/(sin A sec B ) - (sin^(2) B)/(cos^(2)A)) = tan A .

Prove that: (sin A + cos A)/(sin A - cos A) + (sin A - cos A)/(sin A + cos A) = (2)/(sin^(2)A-cos^(2)A)=(2)/(2sin^(2)A-1)=(2)/(1-2 cos^(2)A) .

tan A +cotA =secA.cosecA

Prove that (cosec A - sin A ) (sec A -cos A) = ( 1)/( tan A +cot A)

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SUBHASH PUBLICATION-ANNUAL EXAMINATION QUESTION PAPER JUNE-2019 (WITH ANSWERS)-EXERCISE
  1. Solve the equation x^2-3x-10=0 by using formula.

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  2. If cosec theta=(13)/(12) then find the value of cos theta.

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  3. tan A . Sin A+ cos A=secA

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  4. Draw a pair of tangents to a circle of radius 5 cm which are inclined ...

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  5. A box contains 90 discs. Which are numbered from 1 to 90. If one disc ...

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  6. A metallic sphere of radius 9cm is melted and recast into the shape o...

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  7. The faces of two cubes of volume 125 cm^3 each are joined together to ...

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  8. Prove that the "Length of tangents drawn from an external point a circ...

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  9. Two concentric circle of radii 5 cm and 3cm are drawn. Find the length...

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  10. Construct a triangle with sides 5 cm, 6 cm and 7 cm and then another t...

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  11. Find the mode for the following data in the frequency distribution tab...

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  12. Find the median for the following data in the frequency distribution t...

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  13. From the of a vertical building of 50sqrt3 m height on a level ground...

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  14. Two windmills of height 50m and 40sqrt3 m are on either side of the fi...

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  15. The following table gives production yield per hectare of wheat of 100...

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  16. A cone is having its base radius 12 cm and height 20 cm. If the top of...

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  17. The sum o the fourth and eighth terms of arithmetic progression is 24 ...

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  18. Prove that "In a right triangle, the square of the hypotenuse is equal...

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  19. Solve graphically 2x+y=8 x-y=1

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  20. The ages of two students A and B are 19 years and 15 years respectivel...

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