moinnay l

in #mxp6 years ago

.3/2 B.2/3 C.5/27 D.3/25 E. 5×27
10.If x=log_b⁡a,y=log_c⁡b,z=log_a⁡c, then xyz=…………
A. 0 B. 1 C.-1 D. abc E. a+b+c

  1. If log⁡2=a, then =…….
    A.a^2 B.2.5a C.1+a D.1-a E.1/2 a
    12.If log⁡2=a, log⁡3=b, then log⁡144=………….
    A. a^4 b^2 B.4a+2b C.8ab D. a^2 b^2 E. None
    . OPQ is a sector of a circle , center O and radius r cm , ∠ POQ = θ°.The area , in cm2 , of
    sector OPQ is
    A. rθ B.1/2 rθ C. r^2 θ D.(πr^2 θ)/(360°) E.(πr^2 θ)/(180°)
  2. O is the centre of the circle , and PT is a tangent . The area of shaded region is
    A. 18-36π/2 B. 18-9π/2 C.9π/2 D.18 E. 16
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