prove this trigonometry class 10
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I think it helps you to solve your question
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Golaji:
can you explain your third step
Sec +tan -1/tan -sec+1=cos /1+sin. Sec+tan-1/tan-sec+(Sec2-Tan2). Sec+tan-1/tan-sec+ (sec-tan) (sec+tan). Sec+Tan-1/ Sec-tan (sec +tan-1). 1/sec-tan= now change in sin and cos only
thx
welcome
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