Recommended Questions
- " 5.Prove that "4cos12^(@)cos48^(@)cos72^(@)=cos36^(@)" ."
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- Prove that 4cos12^(@)cos48^(@)cos72^(@)=cos36^(@)
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- What is the value of cos36^@ .
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- Prove that: 4"cos"12^0cos48^0cos72^0=cos36^0
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- Prove that (1)cos36^@cos72^@cos108^@cos144^@=1/16 (2) Show that 4sin27...
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- Prove that : cos 36^@ cos 72^@ cos 108^@ cos 144^@ = 1/16
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- Prove that: i) cos10^(@)cos30^(@)cos50^(@)cos70^(@)=3/16 ii) cos20...
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