Get 2 FREE Instant-Explanations on Filo with code FILOAPP

The value of a for which ax^{2}+sin^{-1}(x^{2}-2x+2)+cos^{-1}

Question

The value of $a$ for which $a x^{2} + s i n^{- 1} (x^{2} - 2 x + 2) + co s^{- 1} (x^{2} - 2 x + 2) = 0$ has a real solution is

\frac{π}{2}

- \frac{π}{2}

\frac{2}{π}

- \frac{2}{π}

Views: 686 students

Found 8 tutors discussing this question

Luna Discussed

The value of

a

for which

a x^{2} + s i n^{- 1} (x^{2} - 2 x + 2) + co s^{- 1} (x^{2} - 2 x + 2) = 0

has a real solution is

11 mins ago

Discuss this question LIVE

11 mins ago

Text solutionVerified

a x^{2} + s i n^{- 1} ((x - 1)^{2} + 1) + co s^{- 1} ((x - 1)^{2} + 1) = 0

a x^{2} + \frac{π}{2} = 0

x^{2} = \frac{- \frac{π}{2}}{a}

x^{2} = \frac{- π}{2 a}

...(i)
And

- 1 \leq (x - 1)^{2} + 1 \leq 1

- 2 \leq (x - 1)^{2} \leq 0

(x - 1)^{2} \leq 0

There is only one possibility

(x - 1)^{2} = 0

x = 1

Substituting in 1, we get

a = - \frac{π}{2}

Was this solution helpful?

150

Report

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Stuck on the question or explanation?

Connect with our maths tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	The value of $a$ for which $a x^{2} + s i n^{- 1} (x^{2} - 2 x + 2) + co s^{- 1} (x^{2} - 2 x + 2) = 0$ has a real solution is
Answer Type	Text solution:1
Upvotes	150