sin 25/cos 65+cosec 34/sec 56-2*cos 43*cosec47/tan 10*tan 40*tan 50*tan 80

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

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hi renukaa

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kya aap mujhe sa1 science ke revision paper email kar sakte hai pleasee

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khushidrochwani@gmail.com

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Chapter 1: CHEMICAL REACTIONS AND

Chapter 2: ACIDS, BASES AND SALTS

Chapter 3: METALS AND NON-METALS

Chapter 12: Electricity

Chapter 13: Magnetic Effect of Electric Current

Chapter 14: Sources of Energy

Life processes : andControl and co-ordination in animals and plants

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pleasee

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i dont hve any revision paper..i only studied from the given revision papers of meritnation...sry dear...

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i want that meritnation papers only! i want of meritnation

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pleasee say yess

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but how,,these papers cant be downloaded...better u take revision from them only...

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i am not a paid member.so i cannot download them. will u send me meritnation revision parers on my email khushidrochwani@gmail.com

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you are a paid memeber! you can download them!

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please

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no i'm sry i cnt...

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why? plaese

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