St. R. C CONVENT SCHOOL JHINJHANA
UT-1 EXAM 2024
CLASS-11 SUBJECT- MATHS. M.M 20
NOTE: ALL QUESTIONS ARE COMPULSORY:
Q.1 If A= { 1,2,3,4,5 } , B = { 3,4,5,6 }, then find AUB.
Q.2. Find the value of Sin 765°
Q.3. In a group of a 70 people, 37 like coffee, 52 like tea and each person likes at least one of the two drink, how many people like both coffee and tea?
Q.4. Find the domain and range of square root of 9 - x².
Q.5 . Convert 40°20’ into radian
Q.6 . Show that:
tan3x. tan2x. tanx = tan3x - tan2x - tanx.
Q.7 . Find the value of cos15°
Q.8. Find the value of. i¹⁹ + i¹⁰¹
Q.9. Find the multiplicative inverse of 4 - 3i
Q.10. Solve the quadratic equation 2x² + x + 1 = 0
……………………………………….A.B.H…………………………..………
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