Npescantenpviz
Npescantenpviz
Math
Answered
prove that sec^2×+csc^2x=sec^2xcsc^2x
Sagot :
Cheahjimmyviz
Cheahjimmyviz
sec²x + csc² x = 1/cos²x + 1/sin²x
= ( sin²x + cos²x)/(cos²xsin²x)
= 1/cos²x sin²x / sin²x + cos²x = 1
= sec²xcsc²x
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