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Shubhankar Mishra 3 years, 11 months ago
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Yogita Ingle 4 years ago
tan10°tan15°tan 75° tan80°
= tan10 tan15 tan(90-75) tan (90-80)
= tan10 tan15 cot 15 cot10
as we know tan theta * cot theta = 1
so
tan10 cot10 tan15 cot 15
= 1
Posted by Sandeep Kumar 4 years ago
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Bugu Ji 3 years, 7 months ago
Ramu Vishwkarma 3 years, 9 months ago
Meghna Thapar 4 years ago
Yama had taken the form of yaksha in order to test Yudhisthra knowlege . After all the Pandavas took to search for the mysterious deer , Yudhisthra came across the dead bodies of his brothers . on examining closely he realises that something to do with the crane that was the lounging on the lake . Yaksha was Yama the God of Death. He had taken the form of Yaksha to see and test Yudhishthira.
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Yogita Ingle 4 years, 1 month ago
he two laws of reflection are:
(i) the incident ray, the reflected ray and the normal (at the point of incidence), all lie in the same plane.
(ii) the angle of reflection (<i>r</i>) is always equal to the angle of incidence (<i>i</i>)
∠<i>r</i> = ∠<i>i</i>
Gaurav Seth 4 years, 1 month ago
Laws of Reflection of light:
- The angle of incidence and angle of reflection is equal.
- The incident ray, reflected ray and normal to the point of reflection lie in the same plane.
The angle of incidence is denoted by 'i' and angle of reflection is denoted by 'r'. The law of reflection is applicable to all types of reflecting surface.
Posted by Mohammad Akram 4 years ago
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Pramda Samal 3 years, 4 months ago
Gaurav Seth 4 years, 1 month ago
Noun is a word used to indicate a person, thing, place or idea. Learn about proper nouns and common nouns.
A proper noun is used to refer to a specific person, place or object. E.g. John is a very smart boy.
A common noun is used to refer to a class of people, places or objects. E.g. John is a very smart boy.
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Vishal Kumar Gupta 3 years, 8 months ago
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