As per the given question,
Evaluate the following integrals: $\int{\frac{\cos x}{\cos 3x}dx}$
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Exercise 19.22
Evaluate the following integrals: $\int{\frac{2}{2+\sin 2x}dx}$
As per the given question,
Evaluate the following integrals: $\int{\frac{1}{4{{\sin }^{2}}x+5{{\cos }^{2}}x}dx}$
As per the given question,
Evaluate the following integrals: $\int{\frac{1}{4{{\cos }^{2}}x+9{{\sin }^{2}}x}dx}$
As per the given question,