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4. Trigonometric Ratios and Identities
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Q5 of 268 Page 4

Prove the following :

We know that






Taking LHS





Now, RHS=


∴ LHS =RHS


Hence Proved


More from this chapter

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5

Prove the following :

5

Prove the following :

5

Prove the following :

6

If A=60o and B = 30o, verify that :

cos (A+B) = cos A cos B – sin A sin B

Questions · 268
4. Trigonometric Ratios and Identities
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