Bengali] If A+B=90^(@) then prove that 1+(tanA)/(tanB)=sec^(2)A.

A+B=90^(@)impliesB=90^(@)-A :.1+(tanA)/(tanB)=1+(tanA)/(tan(90^(@)-A)) =1+(tanA)/(cotA)=1+tanA.tanA =1+tan^(2)A=sec^(2)A. Hence 1+(tanA)/(tanB)=sec^(2)A.

if a+b=90 prove that root of tana tanb + tana cotb / sina secb

यदि A =B=60^(@)हो , तो प्रमाणित करो कि tan

Bengali] If A+B = 90^@ , show that tan A + tan B = (cosec^2B)/sqrt(co

Bengali] If tan 35^(@)=x, then prove that (tan 145^(@)- tan 125^(@)

Bengali] If tanA=3/4 and tan B = 4/3, then which of the following i

If `A+B=90^@`, then : `tanA.tanB=`

Bengali] If tan 9^@ = a/b, then prove that (sec^2 81^@)/(1+cot^2 81^@

In a triangle ABC, show that : tan B+C/2 = cot A/2 - x9t6e5hh

If tan A=tan B, then can you prove that A+B=90°? - Quora

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