Question

r = 7 + 7 sine Now to u ** for nowcon bordo co – Nowy (or sin oy do = Sesingo) + 1° ao – S (suM9 + 2sin() + 1) ao = | sin?(O) do + 2 / sin(e) ao + /10 solo H Beach - formato The required Area is a- oo [_erinošao - - sin(20) + 8 cos(@) - 60 Hence, From (1) The required Area is A = 49 Í (1+sin )d0 = 49
Can you explain the red arrow where they got 8 cos theta and 6 theta from in detail thats the only explaining i need.

Answer 1

Slitsin o)'de = Sisino + Leino +1 ) do - | einde + 2 Sino + lido = 14-29) do - e cose + o lisin?o=l-core) * Q * Sin 20 -2 cose to = - Sin 20 - 2 cose + 30 = - Sin20 - 8 cose +60

Hince Hince Binzo -8cosa + -T42 Ju+sinos die = Fainae - Bepse teem alf-sinh-8c85% + 6X76 *+ sin(-) + 8cos (-1)-66-)] 40 -8 +36 +0 +$ +38] .: COM(+3)=1 = $467 - e The required area is A = 49 1 litsino)? do = 4ax 32 = 14 ZT Ang 2
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