Question

All trigonometry formulae​

Answer 1

Answer:

Shifting angle by π/2,π,3π/2 ( Co - function identities or periodicity identities)

• sin(π/2-x)=cos x
• sin(π/2-x)=cos x
• sin(3π/2-x)=-cos x
• sin(3π/2+x)=-cos x
• cos(π/2-x)=sin x
• cos(π/2+x)=-sin x
• cos(3π/2-x)=-sin x
• cos(π-x)=-cos x

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Answer 2

Answer:

Take........plzz follow..