Cos A minus Sin A + 1/ Cos A + Sin A minus 1 is equal to Cosec A + cotA using the identity cosec square A + cot square A
Attachments:
Answers
Answered by
2
Hope it helps you !
Attachments:
SakshaM725:
is it helpful
yes and I know that you will say for for marking you brainlist no problem I will mark u
thanks
Answered by
5
do you have a calculator no so let me solve this problem it is so simple just you need to do some practice don't have a calculator no problem
LHS=cosA−sinA+1cosA+sinA−1
=sinA(cosA−sinA+1)sinA(cosA+sinA−1)
=sinAcosA−sin2A+sinAsinA(cosA+sinA−1)
=sinAcosA+sinA−(1−cos2A)sinA(cosA+sinA−1)
=sinA(cosA+1)−(1−cosA)(1+cosA)sinA(cosA+sinA−1)
=(1+cosA)(sinA+cosA−1)sinA(cosA+sinA−1)
=(1+cosA)(sinA+cosA−1)sinA(cosA+sinA−1)
=1sinA+cosAsinA answer
mark it as brainliest plzzzz
LHS=cosA−sinA+1cosA+sinA−1
=sinA(cosA−sinA+1)sinA(cosA+sinA−1)
=sinAcosA−sin2A+sinAsinA(cosA+sinA−1)
=sinAcosA+sinA−(1−cos2A)sinA(cosA+sinA−1)
=sinA(cosA+1)−(1−cosA)(1+cosA)sinA(cosA+sinA−1)
=(1+cosA)(sinA+cosA−1)sinA(cosA+sinA−1)
=(1+cosA)(sinA+cosA−1)sinA(cosA+sinA−1)
=1sinA+cosAsinA answer
mark it as brainliest plzzzz
Similar questions