sin 25/cos 65+cosec 34/sec 56-2*cos 43*cosec47/tan 10*tan 40*tan 50*tan 80 Share with your friends Share 2 Manbar Singh answered this sin 25°cos 65° + cosec 34°sec 56° - 2 cos 43° cosec 47°tan 10° tan 40° tan 50° tan 80°=sin90°-65°cos 65° + cosec 90°-56°sec 56° - 2 cos90°-47° cosec 47° tan 90°-80°. tan 80° . tan90°-50° tan 50°=cos 65°cos 65° + sec 56°sec 56° - 2 × sin 47° × cosec 47°cot 80° tan 80° cot 50° tan 50°=1 + 1 - 2 × sin 47° ×1sin 47°1tan 80°×tan 80° ×1tan 50°×tan 50°=2 - 21=2 - 2=0 10 View Full Answer Khushi D Rochwani answered this hi renukaa -1 Khushi D Rochwani answered this kya aap mujhe sa1 science ke revision paper email kar sakte hai pleasee 1 Khushi D Rochwani answered this khushidrochwani@gmail.com -1 Khushi D Rochwani answered this Chapter 1: CHEMICAL REACTIONS ANDChapter 2: ACIDS, BASES AND SALTSChapter 3: METALS AND NON-METALSChapter 12: ElectricityChapter 13: Magnetic Effect of Electric CurrentChapter 14: Sources of EnergyLife processes : andControl and co-ordination in animals and plants -1 Khushi D Rochwani answered this pleasee -2 Ganesh Khamankar answered this i dont hve any revision paper..i only studied from the given revision papers of meritnation...sry dear... -1 Khushi D Rochwani answered this i want that meritnation papers only! i want of meritnation -3 Khushi D Rochwani answered this pleasee say yess 4 Ganesh Khamankar answered this but how,,these papers cant be downloaded...better u take revision from them only... 0 Khushi D Rochwani answered this i am not a paid member.so i cannot download them. will u send me meritnation revision parers on my email khushidrochwani@gmail.com -1 Khushi D Rochwani answered this you are a paid memeber! you can download them! -2 Khushi D Rochwani answered this please -1 Ganesh Khamankar answered this no i'm sry i cnt... 0 Khushi D Rochwani answered this why? plaese 6