sina + sin b+ sinc=n 1-a') + b(1-b) +c/(1-c) EX8. If then the value of will...

  

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sina + sin b+ sinc=n 1-a') + b(1-b²) +c/(1-c²) EX8. If then the value of will be EX9. If sin- x* + cos-x? 2 4 2 for 0< kx|< /2 , then x equals (a) 1/2 (2001S) (d) -1 (b) 1 (c) -1/2 sina + sin b+ sinc=n 1-a') + b(1-b²) +c/(1-c²) EX8. If then the value of will be EX9. If sin- x* + cos-x? 2 4 2 for 0< kx|< /2 , then x equals (a) 1/2 (2001S) (d) -1 (b) 1 (c) -1/2