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16 February, 04:49

2 sec (4x) - 2

Use a calculator to find lim -

X+0 4 sec (4x)

a.

4.

C.

O

b.

1/2

d. None of these

+1
Answers (1)
  1. 16 February, 06:21
    0
    Step-by-step explanation:

    Find the limit of x to 0 of 4•Sec (4x) ^-2

    We know that, Sec4x = 1 / Sin4x

    Then,

    Lim x → 0: 4• (1 / Sin4x) ^-2

    Lim x → 0: 4• (Sin4x) ²

    Then,

    Lim x → 0: 4 (Sin (4*0)) ²

    Lim x → 0: 4 (Sin0) ²

    Lim x → 0: 4

    Then, the limit as x → 0 is 4.

    The correct answer is 4

    Option A
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