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NCERT KANNAD-TRIGONOMETRY -Exercise -11.2
- Evaluate the following sin 45 ^(@) +cos 45^(@)
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- Evaluate the following (cos 45^(@))/( sec 30^(@) +cosec 60^(@))
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- Evaluate the following (sin 30^(@) +tan 45^(@) -cosec 60^(@) )/( se...
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- 2 tan ^ 2 45 ^@ + cos ^ 2 30 ^@ - sin ^ 2 60 ^@ = ?
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- Evaluate the following (sec^(2) 60^(@) -tan ^(2) 60^(@) )/( sin ^(2...
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- ( 2tan 30 ^(@) )/( 1+tan ^(2) 45^(@) ) =
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- ( 1 - tan ^ 2 45^@ ) /( 1 + tan ^2 45 ^@ ) = ?
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- (2 tan 30 ^@) /( 1 - tan ^ 2 30 ^@ )
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- sin 60 ^@ cos 30 ^@ + sin 30^ @ cos 60^@ = ?
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- Is it right to say that cos ( 60^(@) + 30 ^(@) ) = cos 60^(@) cos 30 ^...
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- In right angle triangle Delta PQR ,right angle at Q,PQ = 6cm and angl...
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- In Delta XYZ , right angle is at Y,YZ =x, and XZ =2x Then determine an...
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- Is it right to say that sin (A+B) =sin A +sin B ? Justify your answer...
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