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Prove that: s in 12^0s in 48^0s in 54^0=...

Prove that: `s in 12^0s in 48^0s in 54^0=1/8dot`

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Prove that: sin 12^0sin 48^0sin 54^0=1/8dot

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  2. (sin5theta+sin2theta-sin tehta)/(cos5theta+2cos3theta+2cos^(2)theta+co...

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  3. Prove that: s in 12^0s in 48^0s in 54^0=1/8dot

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  5. Prove that :t a n A+tan(60^0+A)+tan(120^0+A)=3t a n3A

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  10. Prove that 5 cos theta+3cos(theta+(pi)/(3))+3 lies between -4 and 10.

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  11. Find the maximum value of 1+sin((pi)/(4)+theta) +2sin ((pi)/(4)-thet...

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  12. Prove that t a n A+2t a n2A+4t a n4A+8cot8A=cot Adot

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  13. sum(r=1)^(n-1)cos^(2) (rpi)/2 is equal to

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  14. Prove that: (1+sec2theta)(1+sec4theta)(1+sec8theta)(1+sec2^ntheta)=t a...

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  18. The values of cos^2 73^0+cos^2 47^0-sin^2 43^0+sin^2 107^0 is equal t...

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  19. The expression (sin 22^0cos8^0+cos 158^0cos98^0)/(sin 23^0cos7^0+cos 1...

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