Dear student 8)To find : sin5θGiven: sin2θ=cos3θ⇒sin2θ=sin90°-3θ ∵sin(90°-x)=cosx⇒2θ=90°-3θ⇒5θ=90°⇒θ=18°So, sin5θ=sin5×18°=sin90°=1 For remaining queries we request you to post them in separate threads to have rapid assistance from our experts Regards

7,8,9

7,8,9 tan S ton 10_ Atan4_S 20 'an "V sin I S • coo S' + co.'S •in 'S 10 XO • • 00'. ptv•.C 2. If 40. or O) O. tan •n or t" •nd I L •n of angle ('titan 10b, '2. In iABC nght angle that Sin: A •an' • I g. In A. IBC prove trut tan 2 .1 2

Dear student

8) To find : \sin 5 θ Given : \sin 2 θ = \cos 3 θ \Rightarrow \sin 2 θ = \sin (90 ° - 3 θ) [∵ \sin (90 ° - x) = cosx] \Rightarrow 2 θ = 90 ° - 3 θ \Rightarrow 5 θ = 90 ° \Rightarrow θ = 18 ° So, \sin 5 θ = \sin (5 \times 18 °) = \sin 90 ° = 1

For remaining queries we request you to post them in separate threads to have rapid assistance from our experts.
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7,8,9 7,8,9 tan S ton 10_ Atan4_S 20 'an "V sin I S • coo S' + co.'S •in 'S 10 XO • • 00'. ptv•.C 2. If 40. or O) O. tan •n or t" •nd I L •n of angle ('titan 10b, '2. In iABC nght angle that Sin: A •an' • I g. In A. IBC prove trut tan 2 .1 2

7,8,9

7,8,9 tan S ton 10_ Atan4_S 20 'an "V sin I S • coo S' + co.'S •in 'S 10 XO • • 00'. ptv•.C 2. If 40. or O) O. tan •n or t" •nd I L •n of angle ('titan 10b, '2. In iABC nght angle that Sin: A •an' • I g. In A. IBC prove trut tan 2 .1 2