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Solve: x tan 60^@cos^2 30^@ = (tan^2 45^...

Solve: `x tan 60^@cos^2 30^@ = (tan^2 45^@ sec 60^@)/(cosec 60^@)`

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If x sin 60^@ cos^@ 30^@ = (tan^2 45^@ sec 60^@)/("cosec 60"^@) then find the value of x.

If x sin 60^(@) cos^(2)30^(@) =(tan^(2)45^(@) sec60^(@))/("cosec"60^(@)) , then find the value of x.

Prove that (1-tan^2 30^@)/(1+tan^2 30^@) = cos60^@

find the value of (2 tan 30^@ cos 60^@)/(1+tan^2 30^@)-(tan^2(45^@)-1/2cos60^@cos60^@)/(1-tan^2(30^@) .

If (2 tan^2 30^@)/(1 - tan^2 30^@) + sec^2 45^@ - sec^2 0^@ = x sec 60^@ , then the value of x is___

Find the values of sin 30^(@) ,cos 30 ^(@) ,tan 30 ^(@) ,cosec 30^(@) ,sec 30 ^(@) and cot 30^(@) by using the ratio concepts .

Prove that cot^2 60^@+sin^2 45^@ +sin^2 30^@+cos^2 90^@=(13)/(12)

( 2tan 30 ^(@) )/( 1+tan ^(2) 45^(@) ) =

UNITED BOOK HOUSE-GHORANASH HIGH SCHOOL -EXERCISE
  1. If a alpha b and b alpha c, show that a^3+b^3+c^3 alpha 5 abc.

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  2. If a,b,c are in continued proportion, then show that 1/b^2= 1/(b^2-a^2...

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  3. If a^2/(b+c)=b^2/(a+c)=c^2/(a+b)=1, then show that 1/(1+a)+1/(1+b)+1/(...

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  4. Prove that opposite angles of a cyclic quadrilateral are supplementary

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  5. State and prove Pythagoras theorem.

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  6. Prove that two equal chords are equidistant from the centre of the cir...

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  7. Two chords AB and AC of the larger of two concentrci circles touch the...

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  8. Draw a triangle having sides 6cm, 8 cm and 10 cm. Now draw the incircl...

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  9. Geometrically find the value of sqrt(35).

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  10. If (sin theta+ cos theta)/(sin theta-cos theta) = 5 then find the valu...

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  11. Solve: x tan 60^@cos^2 30^@ = (tan^2 45^@ sec 60^@)/(cosec 60^@)

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  12. শূন্যস্থান পূরণ করো : x = a cos (90^@ - theta),y = b cot (90^@- theta)...

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  13. From a point on the roof a house 11 metres height, it is observed that...

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  14. Answer any One question : The length of the shodow of a post becomes ...

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  15. The ratio of lengh, breadth of height of a solid cubiod is 4:3:2.If th...

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  16. Three spheres made of copper having the lengths of 3 cm. 4 cm and 5 cm...

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  17. The base radius of a right circular cylinder and a cone are equal and ...

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  18. If the Ariothmetic mean of the following data is 15, then find the val...

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  19. Find the median of the following data

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  20. Find the mode of the following data.

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