triangle abc is a right angled triangle, right sngled at b ,BC = 7 cm and AC - AB = 1 cm. find the value of sin4 thita +1 /sin2thita.
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triangle abc is a right angled triangle, right sngled at b ,BC = 7 cm and AC - AB = 1 cm. find the value of sin4 thita +1 /sin2thita.
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