Question: 3. Simplify the expression below using identities. 3 sinx + sinxcosx 4. Simplify the expression using identities. (secx+1)(secx-1) 2 sin x 5. Simplify the

3. Simplify the expression below using identities. 3 sinx + sinxcosx 4. Simplify the expression using identities. (secx+1)(secx-1) 2 sin x 5. Simplify the expression using identities cosx sinx 1sinx COSX

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