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Line 85: − − ==Interpretation of problems== − #It is to prove the problem based on trigonometric identities − #the function of one trigonometric ratio is relates to other − ==Concept development== − Develop the skill of proving problem based trigonometric identity − ==Skill development== − Problem solving − ==Pre Knowledge require==
→Hints for difficult problems
=='''Problem-1'''==
=='''Problem-1'''==
'''prove that''' <math>\frac{1-\tan^2 A}{1+\tan^2 A}=1-\sin^2 A</math>
'''prove that''' <math>\frac{1-\tan^2 A}{1+\tan^2 A}=1-\sin^2 A</math>
= Project Ideas =
= Project Ideas =