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Evaluate: (sin^(4) 60^(@) + sec^(4) 30^(...

Evaluate: `(sin^(4) 60^(@) + sec^(4) 30^(@)) - 2 (cos^(2) 45^(@) - sin^(2) 90^(@))`

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

Find the value of 4(sin^(4)30^(@)+cos^(4)30^(@))-3(cos^(2)45^(@)+sin^(2)90^(@)) .

Evaluate 3 cos^(2) 30^(@) +sec^(2) 30^(@) +2 cos 0^(@) + 3sin 90^(@) -tan^(2) 60^(@)

The value of (1)/(2) sin ^(2) 90^(@) sin^(2) 30^(@) cos ^(2) 45^(@) + 4 tan ^(2) 30^(@) + (1)/(2) sin^(2) 90^(@) - 2 cos ^(2) 90^(@) is :

Evaluate : ( 2 ( sin^2( 60^(@ )) + cos^2( 60^(@ )))) / ( tan^2( 45^(@ )) - cos^2( 90^(@ )) + sin( 90^(@ ))

AGRAWAL PUBLICATION-SAMPLE PAPER 4-EXERCISE
  1. Show that 3+sqrt(5) is an irrational number, assuming that sqrt(5) is ...

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  2. Solve algebraically: 4x + 3y = 14 and 3x - 4y = 23.

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  3. Evaluate: (sin^(4) 60^(@) + sec^(4) 30^(@)) - 2 (cos^(2) 45^(@) - sin^...

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  9. The figure drawn on the graph paper shows a Delta ABC with vertices A ...

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  10. The figure drawn on the graph paper shows a Delta ABC with vertices A ...

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  11. The figure drawn on the graph paper shows a Delta ABC with vertices A ...

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  13. Two spotlights, P and Q are mounted on a vertical pole AB as shown. ...

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  16. A bag contains 15 white balls and some black balls. If the probability...

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  19. Using factorisation, find the HCF of 36 and 54.

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