Engineering Board Exam Reviewer · Inverse Trigonometric Functions · hard

ECE Board March 1996: Solve for x in the given equation: (2x) + (x) = π/4

  1. 0.149
  2. 0.281
  3. 0.421
  4. 0.316

Answer

B. 0.281

Solution

[ (2x)+ (x)]= π/4=1 2x+x/1-2x2=1 2x2+3x-1=0. Solving gives x= -3+sqrt(17)4 0.281.

More Inverse Trigonometric Functions questions

  1. EE Board March 1998: Solve for x in the equation: (x+1) + (x-1) = (12).
  2. Solve for x: 2x+ 3x= π4.
  3. Solve for x: x=2 x.
  4. Evaluate 1+ 2+ 3 in degrees.
  5. Find ≤ft(2 35 ).
  6. Find ≤ft( 35 ).
  7. Find ≤ft( 3+ 2 ).
  8. Evaluate ≤ft(- 12 ) in degrees (principal value).
  9. Evaluate 3/2 in degrees.
  10. CE Board November 1992: Find the value of ≤ft( 15/17 ).

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