show that sin2 35+ sin2 55 - tan2 45 =0
Answers
Step-by-step explanation:
sin^2 35° + sin^2 55° - tan^2 45°
= (cos^2 55° + sin^2 55°) - tan^2 45°
= 1- tan^2 45°
= 1-1= 0( Proved)
I hope this answer will help you......
Answer:
A helicopter is ascending with a velocity of 2 m/s at a height of 24 m when it drops a mail packet. The packet contains material, which can be damaged if it hits ground with velocity of magnitude greater than 72 km / h. Was the packet damaged? Explain your answer.
(Take g = 10 m/s2)
Ans
As the packet reaches the ground with a velocity (22 m/s) greate
Ans
As the packet reaches the ground with a velocity (22 m/s) greater than the safe velocity of 20 m/s, so it is damaged.A helicopter is ascending with a velocity of 2 m/s at a height of 24 m when it drops a mail packet. The packet contains material, which can be damaged if it hits ground with velocity of magnitude greater than 72 km / h. Was the packet damaged? Explain your answer.
(Take g = 10 m/s2)
Ans
As the packet reaches the ground with a velocity (22 m/s) greate
Ans
As the packet reaches the ground with a velocity (22 m/s) greater than the safe velocity of 20 m/s, so it is damaged.A helicopter is ascending with a velocity of 2 m/s at a height of 24 m when it drops a mail packet. The packet contains material, which can be damaged if it hits ground with velocity of magnitude greater than 72 km / h. Was the packet damaged? Explain your answer.
(Take g = 10 m/s2)
Ans
As the packet reaches the ground with a velocity (22 m/s) greate
Ans
As the packet reaches the ground with a velocity (22 m/s) greater than the safe velocity of 20 m/s, so it is damaged.