Question: please help 1) Use trigonometric identities as presented in section 7.2 to help evaluate these integrals. Clearly show the identity (or identities) being used in

please help

please help 1) Use trigonometric identities as presented in section 7.2 to

1) Use trigonometric identities as presented in section 7.2 to help evaluate these integrals. Clearly show the identity (or identities) being used in each case. a) cos x dx b ) - tan xsec x ) dx

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