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[" उढाहरण (Examples) "],[" उदाहरण "1:" य...

[" उढाहरण (Examples) "],[" उदाहरण "1:" यदि "cot A=(b)/(a)," तो दिखाइए कि "(b sec A)/(a cosec A)=1]

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(1+tan A+sec A)(1+cot A-cosec A)=

" (i) "(1+sec A+tan A)(1-cosec A+cot A)=2

(1 + cot A — cosec A) (1 + tan A + sec A) = 2 .

(b) cosec theta=1+cot theta

(b) cosec theta=1+cot theta

sin A (1 + tan A) + cos A (1 + cot A) = sec A + cosec A .

(1+tan A)/(sin A)+(1+cot A)/(cos A)=2(sec A+cosec A)

Prove that (1+tan A+sec A)(1+cot A-" cosec A")=2

Prove that : cos A (1 + cot A) + sin A (1 + tan A) = sec A + cosec A