Question: 7. In AABC, right angled at C, then tanA + tanB = 1) bc 2) ab 3) ab ac C 8. The value of

7. In AABC, right angled at C, then tanA + tanB =

7. In AABC, right angled at C, then tanA + tanB = 1) bc 2) ab 3) ab ac C 8. The value of the expression (2 sin2 91-1)(2 sin 92 -1)..(2 sin 180 1) is equal to 1) 0 2) 1 3) 290 4) 290 90 2. > cos A = 3 9. cosecA + cot A = 13 2) 5 3) 13 13 4) 13 -- 10. sin x+ sin x=1= cosx+cos" x= 1) 0 2) 1 3) 2 4) -1 11. cos x+ cos x=1sinx +2sinx+si 1) 0 2) 1 3) 2 4) -1 12. If sin x+ cosx = a then sin x-cosx%3D 1) V1-a 2) Ja? -1 3) /2-a 4) Ja -2 13. If asin 0+bcos 0=c, then tan 0 = c-b - a-c 4) c-b b-c 1) a-c 2) a-c 3) b-c

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