9sec square A minus9tan square A+ ( 5sin square theta+ 5cos square theta)
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Step-by-step explanation:
=> 9sec^2A - 9tan^2A + (5sin^2theta + 5cos^2theta)
9 and 5 will come out as common..And as we know that....
(i) sec^2A - tan^2A = 1
(ii) sin^2 theta + cos^2 theta = 1
=> 9 [ 1 ] + 5 [ 1 ]
=> 9 + 5
=> 14 (ANSWER)
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