
Grade 10Trigonometry
prove that:(sec^210degree)(1+sec20degree)(1+sec40degree)(1+sec80degree)=1
prove that:(sec^210degree)(1+sec20degree)(1+sec40degree)(1+sec80degree)=1

Last Activity: 3 Years ago

Last Activity: 4 Years ago


Last Activity: 4 Years ago

Last Activity: 4 Years ago