Learning guidelines Verify the identity.(sin 0+ cos 0)² = 1 + sin 20Begin by working with the left side. Square (sin 0 + cos 0).(Simplify your answer.)Apply a Pythagorean Identity and simplify the expression obtained in the previous step.(Simplify your answer.)The expression from the previous step then simplifies to 1+ sin 20 using what?O A. Power-Reducing FormulasB. Double-Angle FormulaC. Half-Angle FormulaD. Sum and Difference Formula Verify the identity.(sin 0+ cos 0)² = 1 + sin 20%3DBegin by working with the left side. Square (sin 0 + cos 0).(Simplify your answer.)Apply a Pythagorean Identity and simplify the expression obtained in the previous step.(Simplify your answer.)The expression from the previous step then simplifies to 1+ sin 20 using what?A. Power-Reducing FormulasB. Double-Angle FormulaC. Half-Angle FormulaD. Sum and Difference Formula

(sin 0+ cos 0)² = 1 + sin 20 Begin by working with the left side. Square (sin 0 + cos 0). (Simplify your answer.) Apply a Pythagorean Identity and simplify the expression obtained in the previous step. (Simplify your answer.) The expression from the previous step then simplifies to 1+ sin 20 using what? A. Power-Reducing Formulas B. Double-Angle Formula C. Half-Angle Formula D. Sum and Difference Formula