a Directions (Q. Nos. 25-26) Let co...
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a Directions (Q. Nos. 25-26) Let cos a and cos ß be me roots of the equation, 8x2 – 2x – 1=0. 25. The value of 25. The value o pr o ceso de 26. The value of cos.cosis (6) ez e is

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Maths
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( sin beta / 2=sqrt{frac{1-y_{2}}{2}}=frac{1}{2} ) ( sin alpha / 2 sin beta / 2=frac{sqrt{5}}{4 sqrt{2}} int_{1}^{2} sec x_{0} x d )
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