In triangle \( A B C, a, b, c \) are the lengths of its sides and \( A \), \( B, C \) are the an...

Channel:
Subscribers:
449,000
Published on ● Video Link: https://www.youtube.com/watch?v=ET3DfRVofEU



Duration: 4:14
4 views
1


In triangle \( A B C, a, b, c \) are the lengths of its sides and \( A \), \( B, C \) are the angles of triangle \( A B C \). The correct relation is given by
(A) \( (b-c) \sin \left(\frac{B-C}{2}\right)=a \cos \frac{A}{2} \)
(B) \( (b-c) \cos \left(\frac{A}{2}\right)=a \sin \frac{B-C}{2} \)
(C) \( (b+c) \sin \left(\frac{B+C}{2}\right)=a \cos \frac{A}{2} \)
(D) \( (b-c) \cos \left(\frac{A}{2}\right)=2 a \sin \frac{B+C}{2} \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2022-11-16निम्नलिखित को अंतराल रूप में लिखिए: \[ \{x: x \in \mathrm{R},-4x \leq 6\} \]
2022-11-16कारण स्पष्ट कीजिए- हरी घास के ढेर के अन्दर का तापक्रम बाहर के वातावरण के तापक्रम से अधिक क्यों ह...
2022-11-16निम्नलिखित जटिलों में केन्द्रोय धातु आयन की संकरण अवस्था बताइए- \( \left[\mathrm{CO}\left(\mathr...
2022-11-16The oxidation states of \( \mathrm{S} \) atoms in \( \mathrm{S}_{4} \mathrm{O}_{6}^{2-} \) from ...
2022-11-16Short Answer Type Questions Draw a diagram of the structure of a human ovum surrounded by corona...
2022-11-16विश्लेषणात्मक भारों (weights) के निर्माण के लिए प्रयुक्त संक्रमण धातु \( \cdots \cdots \cdots \) है।
2022-11-16Phylum Arthopoda is the largest phylum, in which insects are the largest group. Which among the ...
2022-11-16Gordius belong to phylum .......
2022-11-16Distinguish between photosynthesis and respiration.
2022-11-16Give suitable example of root modifications (both tap and adventitious) for storage of food.
2022-11-16In triangle \( A B C, a, b, c \) are the lengths of its sides and \( A \), \( B, C \) are the an...
2022-11-16A structure in the cortex of certain ciliate and flagellate protozoans consisting of a cavity an...
2022-11-16Dolomite is mineral whose formula is (A) \( \mathrm{CaCO}_{3} \) (B) \( \mathrm{MgCO}_{3} \) (C)...
2022-11-16ऑक्जिन के चार प्रमुख कार्य बताइयें।
2022-11-16Assertion (A): Spermatia are also conidia. Reason (R): They are produced on spermatophore or spe...
2022-11-16The term ecosystem was given by
2022-11-16During ventricular diastole (A) The auricles relax (B) The heart contracts (C) The heart pumps b...
2022-11-16If \( I=\int \frac{1}{x^{4} \sqrt{a^{2}+x^{2}}} d x \), then \( I \) equals (A) \( \frac{1}{a^{4...
2022-11-16Many of the diagrams given below show magnetic field lines (thick lines in the figure) wrongly. ...
2022-11-16The angle that the vector representing the complex number \( \frac{1}{(\sqrt{3}-\mathrm{i})^{25}...
2022-11-16The current in a coil of inductance \( 5 \mathrm{H} \) decreases at the rate of \( 2 \mathrm{~A}...