Let \( f(\mathrm{x})=\sin ^{2} \mathrm{x}-(\mathrm{a}-1) \sin \mathrm{x}+2(\mathrm{a}-3) \) \( \...

Channel:
PW Solutions
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=hKMGCch3_hg


Duration: 5:11
0 views
0

Let \( f(\mathrm{x})=\sin ^{2} \mathrm{x}-(\mathrm{a}-1) \sin \mathrm{x}+2(\mathrm{a}-3) \)
\( \mathrm{P} \)
On the basis of above information, answer the following questions :
W If \( \mathrm{f}(\mathrm{x})=0 \) have two real roots in \( (0, \pi) \), then \( \mathrm{a} \in \)
(A) \( (1,2) \)
(B) \( (3,4) \)
(C) \( (3,4) \cup\{5\} \)
(D) \( (3,5) \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-12-01The set \( \left\{x: x^{2} \neq x\right\} \) may be equal to (A) \( \{0\} \) (B) \( \{1\} \) (C)...
2022-12-01The set \( \left\{x: x^{2} \neq x\right\} \) may be equal to (A) \( \{0\} \) (B) \( \{1\} \) (C)...
2022-12-01If \( x=\frac{(7+5 \sqrt{2})^{\frac{1}{3}}}{2+2 \sqrt{2}} \), then \( x \) belongs to: (A) \( (2...
2022-12-01Let \( z_{1}, z_{2}, z_{3} \) be non-zero complex numbers satisfying the equation \( z^{4}=i z \...
2022-12-01Let \( A=\left\{(x, y) \mid y=e^{x}, x \in R\right\} \) and \( B=\left\{(x, y) \mid=e^{-x}, x \i...
2022-12-01The locii of a point \( \mathrm{P}(\mathrm{z}) \) in the complex plane satisfying the \( \left|\...
2022-12-01If an \( =\{a x: x \in N\} \), then \( 3 N \cap 7 N= \) (A) \( 3 \mathrm{~N} \) (B) \( 7 \mathrm...
2022-12-01The \( \mathrm{x} \)-coordinate of the incentre of the triangle that has the coordinates of mid ...
2022-12-01Which are the routes that can prepare quinol \( P \) (A) \( \stackrel{\mathrm{O} 2^{I} \Delta}{\...
2022-12-01Consider the polynomial \( \mathrm{P}(\mathrm{x})=\left(\mathrm{x}-\cos 36^{\circ}\right)\left(\...
2022-12-01Let \( f(\mathrm{x})=\sin ^{2} \mathrm{x}-(\mathrm{a}-1) \sin \mathrm{x}+2(\mathrm{a}-3) \) \( \...
2022-12-01How many total stable acyclic structure isomers are possible with molecular formula \( \mathrm{C...
2022-12-01The number of acyclic isomers of \( \mathrm{C}_{3} \mathrm{H}_{5} \mathrm{Cl} \) are : (A) 1 (B)...
2022-12-01Which of the following IUPAC names are correct. (A) (B) P W. 3-Ethyl-1,1-dimethylcyclohexane 1-E...
2022-12-01The IUPAC name of the following compound is : \( P \) W. (A) 3-Methoxy ethylpropanoate (B) Ethyl...
2022-12-01The correct IUPAC name of the following compound is : \( P \) (A) 2-Bromo-5-methylbicyclo[5:4:0]...
2022-12-01Which of the following pairs of structures do not represent isomers ? (1) (2) \( \mathrm{P} \) W...
2022-12-01Which of the following can be the isomer(s) of \( \mathrm{C}_{8} \mathrm{H}_{8} \mathrm{O} \) : ...
2022-12-01The number of structurally isomeric esters with molecular formula \( \mathrm{C}_{5} \mathrm{H}_{...
2022-12-01What is the degree of unsaturation in a compound with molecular formula \( \mathrm{C}_{9} \mathr...
2022-12-01Select the longest continous carbon chain in each of the following molecules. \( \mathrm{P} \) W