SOLVE QUESTION NO. 67 AND 77. (NOTE: SOLVE BOTH THE QUESTIONS AND DO NOT GIVE ANY LINKS)

SOLVE QUESTION NO. 67 AND 77. (NOTE: SOLVE BOTH THE QUESTIONS AND DO NOT GIVE ANY LINKS) 67. Evaluate 68. Evaluate 69. Evaluate (xsinx+cosx)2 HOTS; All India 2012C eb sin xdx. dx. -0+7 70. Evaluate x' + 16 12+1 71. Evaluate dx. sin x — cos x dx. Foreign 2011 Foreign 2011 All India 201 Delhi 201 72. Evaluate HOTS; Delhi 2011C 73. Evaluate 5X+3 dx. 74. Evaluate + ax +10 Delhi 2011 Delhi 2011; All India 2010 1 + sin 2x 75. Evaluate J e dx. 1 + cos 2x All India 20toc dx 76. Evaluate 1 Delhi 2010C 77. Evaluate r) + dx. (log HOTS; Delhi 20toc