In any △ABC, Prove that b2−c2a2 sin 2 A + c2−a2b2 sin 2 B + a2�

1.	In any △ABC, Prove that b2−c2a2 sin 2 A + c2−a2b2 sin 2 B + a2−b2c2 sin 2 C = 0 Or Two ships leave a port at the same time. One goes 24 km/h in the direction N 45∘ E and the other travels 32 km/h in the direction S 75∘ E. Find the distance between the ships at the end of 3 h.
Answer» In any $△ A B C,$ Prove that $\frac{b^{2} - c^{2}}{a^{2}}$ $sin$ 2 A + $\frac{c^{2} - a^{2}}{b^{2}}$ sin 2 B + $\frac{a^{2} - b^{2}}{c^{2}}$ sin 2 C = 0 Or Two ships leave a port at the same time. One goes 24 km/h in the direction N 45 $^{\circ}$ E and the other travels 32 km/h in the direction S 75 $^{\circ}$ E. Find the distance between the ships at the end of 3 h.

In any △ABC, Prove that b2−c2a2 sin 2 A + c2−a2b2 sin 2 B + a2−b2c2 sin 2 C = 0 Or Two ships leave a port at the same time. One goes 24 km/h in the direction N 45∘ E and the other travels 32 km/h in the direction S 75∘ E. Find the distance between the ships at the end of 3 h.

Answer»

In any $△ A B C,$ Prove that $\frac{b^{2} - c^{2}}{a^{2}}$ $sin$ 2 A + $\frac{c^{2} - a^{2}}{b^{2}}$ sin 2 B + $\frac{a^{2} - b^{2}}{c^{2}}$ sin 2 C = 0

Two ships leave a port at the same time. One goes 24 km/h in the direction N 45 $^{\circ}$ E and the other travels 32 km/h in the direction S 75 $^{\circ}$ E. Find the distance between the ships at the end of 3 h.

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In any △ABC, Prove that b2−c2a2 sin 2 A + c2−a2b2 sin 2 B + a2−b2c2 sin 2 C = 0 Or Two ships leave a port at the same time. One goes 24 km/h in the direction N 45∘ E and the other travels 32 km/h in the direction S 75∘ E. Find the distance between the ships at the end of 3 h.

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