5(a)Trigonometric Identities EquationsMedium3 marksProve the identity 1−sinθ1+1+sinθ1≡cos2θ2.Show your proofTypeWriteMath0 wordsGrade answerSolutionGrading criteria
5(b)Trigonometric Identities EquationsHard4 marksHence, solve the equation 1−sinθ3+1+sinθ3=12 for 0∘≤θ≤360∘.Show your methodTypeWriteMath0 wordsValues of θTypeWriteMath0 wordsGrade answerSolutionGrading criteria