Skip to content
Philoid
Browse Saved
Back to chapter
Maths
All India - 2019
Home · Class 12 · Maths · Ref. Book · All India - 2019
Prev
Next
Q14 of 52 Page 1

Solve:

Given that


Taking tan both sides, we get






⇒


(Since tan(tan-1A)=A)

⇒ 4x+6x=1-24x2

⇒ 24x2+10x-1=0

⇒ 24x2+12x -2x -1=0

⇒12x(2x + 1) - 1(2x+1) = 0

⇒ (12x-1)(2x+1)=0

Hence

More from this chapter

All 52 →
12

If the sum of two-unit vectors is a unit vector, prove that the magnitude of their differences is .

Or


If , and , Find .


13

Using properties of determinant, prove the following:

.


15

Show that the relation R on ℝ defined as R={(a , b):a ≤ b}, is reflexive, and transitive but not symmetric.

Or

Prove that the function f:ℕ→ℕ, defined by f(x)=x2+x+1 is one-one but not onto. Find inverse of f:ℕ→S, where S is range of f.

16

Find the equation of the tangent to the curve which is parallel to the line 4x-2y+5=0. Also, write the equation of normal to the curve at the point of contact.

Questions · 52
All India - 2019
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 1 2 3 6 12 13 15 18 19 22 24 25 26 28 1 3 7 8 15 19 21 26 28
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved