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1. If sin 0 + sin? @ = 1, then cos? 8 + cos4 @ =, a. 1, b. 0, c. -1, d. none of these, , se, 2. 1f 7 tan @ = 4 then it RS sec =iG, , (7 sin 6+3 cos @), , , , aoe, Noe]. AH eo, [ore, , 3. If 3 cos 8 = 5 sin 9, then the value of, , 5 sin @—2 sec* 0+2 cos @, 5 sin 06+2 sec? @—2 cos 80, a 542, b. 979, c. None of these, 316, d. 2937, , «, 4. Given that sin® = b* then cos® is equal to, , , , b b Je? “a a, , (A) je? —a* (B) z (Cc) b (D) fb? a?, , , , , , , , _ 1 _cosec*@—sec* O __, 5. If tan 8 = V7 then cosec?@+sec2 90, , ao oT ®, “iene foo ~afsogs

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. If Aand B are complementary angles, then, a. sec A= cosec B, , b. tanA=tanB, , c.cos A=cosB, , d. sinA=sinB, , . 1 - 2sin230° is equal to, , a. tan60°, , b. cos60°, , c. None of these, , d. sin60°, , . If ZAPQR is right-angled at Q, then the value c, sin (P +R) is, , 1, eG. 2, b. 1, c. M2, d. 0, If sin é = 4 then cot@ = ?, a. —L, WB, b. 1, d. V3, % 2 tan 30°, . Find the value of \—ten” wa”, a. sin 30°, b. tan 60°, , c. cos 60°, d. sin 60° —

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a. Both A and R are true and R is the correct, explanation of A., , b. Both A and R are true but R is not the, correct explanation of A., , c. Ais true but R is false., , d. Ais false but R is true., , 13. Assertion: In a right-angled triangle, if tan?, , = 3 the greatest side of the triangle is 5, , units., , Reason: (greatest side)? =, , (hypotenuse) = (perpendicular)? + (base), 14. Assertion (A): sin? 6 = 1 - cos6 for any, , value of 0., , Reason (R): Value of sin is always more, , than 1., 15. Assertion (A): If sin 8 = cos @ then tan 0 = 1, , Reason (R): We know that tan 0 = sme, tan @=1, as sin 8 = cos 0, , , , so