関連ワード:  integral of 1 sin x a cos x b    integration of 1 sin x a cos x b dx    integration of 1 upon sin x minus a cos x minus b    integral of 1 by sin x cos x    integration of 1 by sin x cos x dx    integration of 1 a sin x b cos x c    integration of 1 sin x by cos square x    integration of 1 sin x by cos square x dx    integration of 1 upon a sin x b cos x    integral of 1 by sin x cos cube x