find acute angle theta satisfy the equation sec square theta + tan square theta =3
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theta is equal to 45 degrees as sec 45 is root 2 and tan 45 is 1
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sec^2+tan^2=1+tan^2+tan^2=1+2tan^2=3
now 2tan^2=3-1=2 or 2tan^2=2
tan^2=1 hence tan theta =1 or theta =45 degree acute-1
for tan theta =-1 theta =135 degree( 2 solution 45,135) but 45 for acute
now 2tan^2=3-1=2 or 2tan^2=2
tan^2=1 hence tan theta =1 or theta =45 degree acute-1
for tan theta =-1 theta =135 degree( 2 solution 45,135) but 45 for acute
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