please solve please
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Answered by
1
Answer:
mark as brainliest
Step-by-step explanation:
=3^2+4^2+5^2-6^2
=9+16+25-36
=25+25-36
=50-36
=14
please please mark as brainliest
I really need a high rank
Answered by
2
Answer:
The principle of reversibility presupposes that the attenuation of a light ray during its passage through an optical medium because of reflection, refraction, and absorption is not affected by a reversal of the direction of the ray.
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