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MBD EXAMINATION GUIDIf 7 sin2 θ + 3 cos2 θ4, then sec θ + cosec θ s equal to -(a)俩蘩衣2(a)22V3(b)+2The line x =(a) Perpend(b) Parallel(c) Neithe(d) Nothi3, then 5 sin θ-3 cos θ.is equal to-1f5cot®4sin θ +3 cos θ(a) 1811 (b) 29(c)(d) 229(a) 8(c) 12

Answer»

7sin square theta +3cos square theta =4

4 sin square theta + 3sin square theta + 3cos square theta =4

4 sin square theta+3(sin square theta +cos square theta)=4

4sin squre theta=1

sin theta=1/2cos theta= √3/2

tan theta =1/√3sec theta = 2/√3

sec theta + cosec theta = 2 + 2/√3



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