Question

Hi...

${sec}^{2} 60 - {tan}^{2} 60 \\ {sin}^{2} 30 + {cos}^{2} 30$

Answer 1

sec^2[60°]= 4
tan^2[60°]=3
sin^2[30°]=1/4
cos^2[30°]=3/2

sec^2 (60)-tan^2(60)=1
cos^2(30)+sin^2(30)=1

we get it from the formula

Answer 2

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