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NCERT KANNAD-TRIGONOMETRY -Exercise -11.3
- Evaluate (tan 36^(@) )/( cot 54^(@))
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- Evaluate cos 12^(@) -sin 78^(@)
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- cosec 31^@ - sec 59 ^@ = ?
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- Evaluate sin 15^(@) sec 75^(@)
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- Evaluate tan 26^(@) tan 64^(@)
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- Show that tan 48^(@) tan 16^(@) tan 42^(@) tan 74^(@) =1
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- Show that cos 36^(@) cos 54 ^(@) -sin 36^(@) sin 54^(@) =0
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- If tan 2A = cot (A- 18^@ ) where 2A is an acute angle...
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- If tan A = cot B , prove that A + B= 90 ^@
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- If A , B and C are interior angles of a triangle ABC, then show that t...
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- Expression sin75^(@) +cos 65^(@) in terms of trigonometric ratios of ...
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