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Find universal value of theta?Or maximum value of theta?

Find universal value of theta?Or maximum value of theta?

Question Image
Grade:11

1 Answers

deepak singhal
13 Points
3 years ago
sin(x)/cos(x)+cos(x)=2/cos(x);
{sin(x)+cos2(x)}/cos(x)=2/cos(x);
sin(x)+1-sin2(x)=2;
sin2(x)-sin(x)+1=0;
solve this quadratic

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