If the value of \( \sin \theta=\frac{1}{2} \), then find the value of \( 3 \cos \theta-4 \cos ^{...

Channel:
PW Solutions
Subscribers:
458,000
Published on ● Video Link: https://www.youtube.com/watch?v=4BADsabNAP4


Duration: 3:05
3 views
0

If the value of \( \sin \theta=\frac{1}{2} \), then find the value of \( 3 \cos \theta-4 \cos ^{3} \theta \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2023-07-14Show that the value of \[ \frac{\sin \theta}{1-\cos \theta}=\operatorname{cosec} \theta+\cot \th...
2023-07-14Find the value of \[ 2\left(\cos ^{2} 45^{\circ}+\tan ^{2} 60^{\circ}\right)-6\left(\sin ^{2} 45...
2023-07-14Without using trigonometric table, find the value of \( \frac{\cot 54^{\circ}}{\tan 36^{\circ}}+...
2023-07-14In a triangle \( A B C, \angle B=90^{\circ} \). If \( A B=12 \mathrm{~cm} \) and \( A C=13 \math...
2023-07-14Direction: Each question contains statements given in two columns which have to be matched. Stat...
2023-07-14If \( \tan \mathrm{A}+\frac{1}{\tan \mathrm{A}}=2 \) find the value of \( \tan ^{100} \mathrm{~A...
2023-07-14Direction: Each question contains statements given in two columns which have to be matched. Stat...
2023-07-14Prove that the value of \( (\sec \theta+\cos \theta)(\sec \theta-\cos \) \( \theta) \) is \( \ta...
2023-07-14Direction: Each question contains statements given in two colunins which have to be matched. Sta...
2023-07-14Show that \( \sec ^{4} \theta-\sec ^{2} \theta=\tan ^{4} \theta+\tan ^{2} \theta \).
2023-07-14If the value of \( \sin \theta=\frac{1}{2} \), then find the value of \( 3 \cos \theta-4 \cos ^{...
2023-07-14Show that \( \tan ^{2} \theta-\sin ^{2} \theta=\sin ^{4} \theta \sec ^{2} \theta \).
2023-07-14True and False Statements \( \frac{\sin \theta}{\sqrt{1-\sin ^{2} \theta}} \) is equal to \( \ta...
2023-07-14True and False Statements \( \cot \mathrm{A} \) is the product of \( \cot \) and \( \mathrm{A} \).
2023-07-14True and False Statements \[ \operatorname{cosec}^{2} \theta-\cot ^{2} \theta=1 \]
2023-07-14True and False Statements The value of the expression \( \left(\sin 80^{\circ}-\cos 80^{\circ}\r...
2023-07-14True and False Statements \( \sin \theta=\cos \theta \) for all values of \( \theta \).
2023-07-14True and False Statements \( \frac{\sqrt{\operatorname{coses}^{2} \theta-1}}{\operatorname{cosec...
2023-07-14True and False Statements The value of \( \tan \mathrm{A} \) is always less than 1 .
2023-07-14True and False Statements \( \sin \theta=\frac{5}{3} \) for some angle \( \theta \).
2023-07-14True and False Statements \[ \sin (\mathrm{A}+\mathrm{B})=\sin \mathrm{A}+\sin \mathrm{B} \]