Find the value of Limit x tends to infinity cos x by x is zero why ?

 It can be proved by using sandwich theorem 


For details about sandwich theorem (statement and proof)

Details about Sandwich or squeeze


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Mind blowing hard question

प्रश्न: एक समकोण त्रिभुज का लम्ब 6मिटर इसक  कर्ण 10मिटर से लगा हुआ है।क्षेत्रफल का मान पता  करें।                आप इसका उत्तर 1/2×10×6=30 s...