Without using trigonometric tables, find the value of each of the expressions given below: \( \c...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=2ia7mLO8SwI


Duration: 4:42
1 views
0

Without using trigonometric tables, find the value of each of the expressions given below:
\( \cot \theta \tan \left(90^{\circ}-\theta\right)-\sec \left(90^{\circ}-\theta\right) \operatorname{cosec} \theta+\sin ^{2} 65^{\circ}+\sin ^{2} 25^{\circ} \)
\( +\sqrt{3} \tan 5^{\circ} \tan 45^{\circ} \tan 85^{\circ} \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-16Prove that \[ \frac{\sin \alpha+\sin \beta}{\sin \alpha-\sin \beta}=\frac{\tan \frac{\alpha+\bet...
2022-11-16Earthworms are hermaphrodites and yet crossfertilisation takes place among them.
2022-11-16In the given figure, \( A B C D \) is a rectangle inscribed in a circle having length \( 8 \math...
2022-11-16Two particles of mass \( 0.5 \mathrm{~kg} \) and \( 0.25 \mathrm{~kg} \) moving with velocities ...
2022-11-16Let \( f(x)=x^{2} \) and \( g(x)=2^{x} \). Then, the number of elements in the solution set of t...
2022-11-16рдирд░ рдорд╛рдирд╡ рдореЗрдВ рдпреМрд╡рдирд╛рд░рдореНрдн рд╣реЙрд░реНрдореЛрди рджреНрд╡рд╛рд░рд╛ рдЙрддреНрдкреНрд░реЗрд░рд┐рдд рд╣реЛрддрд╛ рд╣реИред
2022-11-16The wheel of a cart is making 5 revolutions per second. If the diameter of the wheel is \( 84 \m...
2022-11-16рдЬрдирди рд╕реНрд╡рд╛рд╕реНрдереНрдп рд╕реЗ рдЖрдк рдХреНрдпрд╛ рд╕рдордЭрддреЗ рд╣реИрдВ ? рдПрдХ рд╕рдВрдХреНрд╖рд┐рдкреНрдд рд▓реЗрдЦ рд▓рд┐рдЦрд┐рдПред
2022-11-16рдпрджрд┐ рдХрд┐рд╕реА рд╕рд╛рдорд╛рдиреНрдп рд╕реНрддреНрд░реА рдореЗрдВ рд╣реАрдореЛрдлреАрд▓рд┐рдпрд╛ рдХрд╛ рдЬреАрди рд╣реИ, рддреЛ рдЙрд╕рдХреА рдХрд┐рд╕ рд╕рдиреНрддрд╛рди рдореЗрдВ рдпрд╣ рд░реЛрдЧ рдкреНрд░рдХрдЯ рд╣реЛ рд╕рдХрддрд╛ рд╣реИ?
2022-11-16When the sun shines on your hands, your hands get warm because : (A) electromagnetic waves trans...
2022-11-16Without using trigonometric tables, find the value of each of the expressions given below: \( \c...
2022-11-16рдмрд┐рдирд╛ рдирд┐рд╖реЗрдЪрди рдХреЗ рдзреНрд░реБрдг рд╡рд┐рдХрд╕рд┐рдд рд╣реЛрдиреЗ рдХреЛ рдХрд╣рддреЗ рд╣реИрдВ : (A) рдЕрд╕рдВрдЧрдЬрдирди (B) рдмрд╣реБрднреБрд░реНрдгрддрд╛ (C) рдЕрдирд┐рд╖реЗрдХрдлрд▓рди (D) рдЕрдирд┐рд╖...
2022-11-16Without using trigonometric tables, find the value of each of the expressions given below: Show ...
2022-11-16Which of the following is the rate law for \( S_{N^{1}} \) mechanisms? (A) Rate \( =k[ \) Alkyl ...
2022-11-16A beam of plane polarised light falls normally on apolariser of cross-sectional area \( 3 \times...
2022-11-16Without using trigonometric tables, find the value of each of the expressions given below: \[ \s...
2022-11-16\( 2 \tan ^{-1} \frac{1}{2}+\tan ^{-1} \frac{1}{7}=\tan ^{-1} \frac{31}{17} \)
2022-11-16рдЬрд┐рдиреНрдиреЛрдЯрд┐рдкрд┐рдХ рдЕрдиреБрдкрд╛рдд рдХрд┐рдР рдХрд╣рддреЗ рд╣реИрдВ
2022-11-16Without using trigonometric tables, prove that: (i) \( \cos 81^{\circ}-\sin 9^{\circ}=0 \) (ii) ...
2022-11-16Suppose that the sound level of a conversation is initially at an angry \( 75 \mathrm{~dB} \) an...
2022-11-16In the circuit shown in figure, each capacitor has a capacity of \( 3 \mu \). The equivalent cap...