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In a DeltaABC if |(1,a,b),(1,c,a),(1,b,c...

In a `DeltaABC` if `|(1,a,b),(1,c,a),(1,b,c)|=0` then
`Sin^(2)A+Sin^(2)B+Sin^(2)C=`

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HIMALAYA PUBLICATION-MEASUREMENT OF ANGLES, TRIGONOMETRIC RATIOS AND RELATION BETWEEN SIDES AND ANGLES OF A TRIANGLE-QUESTION BANK
  1. The value of "cos"^(2)(pi)/(12)+"cos"^(2)(pi)/(4)+"cos"^(2)(5pi)/(12) ...

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  2. Radii of two circles are 5 cm and 3 cm respectively and the distance b...

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  3. In a DeltaABC if |(1,a,b),(1,c,a),(1,b,c)|=0 then Sin^(2)A+Sin^(2)B+...

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  4. The acute angle in radians between the minute and the hour hands of a ...

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  5. If 0ltxlt(pi)/(2), then the largest angle of a triangle whose sides ar...

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  6. cos 1^(circ)+cos 2^(circ)+cos 3^(circ)+...+cos 180^(circ)=

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  7. The value of (tan 70^(circ)-tan 20^(circ))/(tan 50^(circ))=

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  8. The circum-radius of the triangle whose sides are 13, 12 and 5 is...

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  9. IfA+B+C = 180^(@) then sumtan(A)/(2)tan(B)/(2)=

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  10. If 0lexlepi and 81^(sin^(2x))+81^(cos^(2x))=30 then x=

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  11. In a triangleABC if the sides are a =3, b = 5 and c = 4then sin(B/2) +...

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  12. If 12 cot^(2)theta - 31 cosec theta+32 = 0 then the value of Sin theta...

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  13. The value of cos(270^(@) + theta) cos (90^(@)-theta) - sin (270^(@) - ...

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  14. If the angles of a triangle are in the ratio 3:4:5, then the sides are...

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  15. If sec theta = m and tan theta = n, then (1)/(m)[(m+n)+(1)/((m+n))]=

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  16. From an aeroplane flying, vertically above a horizontal road, the ange...

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  17. sin^(2)17.5^(@) + sin^(2)72.5^(@) is equal to

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  18. The value of (1-tan ^(2) 15^(circ))/(1+tan ^(2) 15^(circ)) is

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  19. The sides of a triangle are 3x+4y, 4x+3y and 5x+5y , where x,y gt 0, t...

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  20. If tan theta = -4/3, then sin theta is :

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