I cannot understand this full chapter and i cannot understand light shadow and reflection chapter only these 2 chapters i can't understand

In maths i can't understand this chapter and algebra and ratio and proportion

Dear student,


We will be able to offer you meaningful help only if you can clearly write down the specific problem areas in a given chapter. We look forward to hear from you again!  

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noting plz wait and see the bjuj's app 
 
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why do we study sanskrit ??????
 
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